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Finding the Fourth Proportional to 16,520.88, 22,798.20 and 9,447.12

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Solution

The fourth proportional to 16,520.88, 22,798.20 and 9,447.12 is: 13,036.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,520.88 : 22,798.20 = 9,447.12 : x
  2. Step 2: Convert to fraction form
    16,520.88/22,798.20 = 9,447.12/x
  3. Step 3: Cross multiply
    16,520.88x = 22,798.20 × 9,447.12
  4. Step 4: Simplify right side
    16,520.88x = 215,377,331.18
  5. Step 5: Solve for x
    x = 215,377,331.18/16,520.88
  6. Step 6: Final answer
    x = 13,036.67

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Half scale
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Double scale
Find fourth proportional to 16,521.88, 22,799.58 and 9,448.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.