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Finding the Fourth Proportional to 15,657.96, 23,437.02 and 8,711.40

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Solution

The fourth proportional to 15,657.96, 23,437.02 and 8,711.40 is: 13,039.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.96 : 23,437.02 = 8,711.40 : x
  2. Step 2: Convert to fraction form
    15,657.96/23,437.02 = 8,711.40/x
  3. Step 3: Cross multiply
    15,657.96x = 23,437.02 × 8,711.40
  4. Step 4: Simplify right side
    15,657.96x = 204,169,256.03
  5. Step 5: Solve for x
    x = 204,169,256.03/15,657.96
  6. Step 6: Final answer
    x = 13,039.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.