Home / 16,220.45-22,384.22-8,768.45

Finding the Fourth Proportional to 16,220.45, 22,384.22 and 8,768.45

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Solution

The fourth proportional to 16,220.45, 22,384.22 and 8,768.45 is: 12,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.45 : 22,384.22 = 8,768.45 : x
  2. Step 2: Convert to fraction form
    16,220.45/22,384.22 = 8,768.45/x
  3. Step 3: Cross multiply
    16,220.45x = 22,384.22 × 8,768.45
  4. Step 4: Simplify right side
    16,220.45x = 196,274,758.10
  5. Step 5: Solve for x
    x = 196,274,758.10/16,220.45
  6. Step 6: Final answer
    x = 12,100.45

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Half scale
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Double scale
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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.