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Finding the Fourth Proportional to 13,457.52, 18,571.52 and 8,151.04

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Solution

The fourth proportional to 13,457.52, 18,571.52 and 8,151.04 is: 11,248.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.52 : 18,571.52 = 8,151.04 : x
  2. Step 2: Convert to fraction form
    13,457.52/18,571.52 = 8,151.04/x
  3. Step 3: Cross multiply
    13,457.52x = 18,571.52 × 8,151.04
  4. Step 4: Simplify right side
    13,457.52x = 151,377,202.38
  5. Step 5: Solve for x
    x = 151,377,202.38/13,457.52
  6. Step 6: Final answer
    x = 11,248.52

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Half scale
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Double scale
Find fourth proportional to 13,458.52, 18,572.90 and 8,152.04
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.