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Finding the Fourth Proportional to 14,891, 20,550.20 and 8,176.92

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Solution

The fourth proportional to 14,891, 20,550.20 and 8,176.92 is: 11,284.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,891 : 20,550.20 = 8,176.92 : x
  2. Step 2: Convert to fraction form
    14,891/20,550.20 = 8,176.92/x
  3. Step 3: Cross multiply
    14,891x = 20,550.20 × 8,176.92
  4. Step 4: Simplify right side
    14,891x = 168,037,341.38
  5. Step 5: Solve for x
    x = 168,037,341.38/14,891
  6. Step 6: Final answer
    x = 11,284.49

Related Problems

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Half scale
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Double scale
Find fourth proportional to 14,892, 20,551.58 and 8,177.92
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.