Home / 18,711.08-28,046.53-9,332.57

Finding the Fourth Proportional to 18,711.08, 28,046.53 and 9,332.57

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Solution

The fourth proportional to 18,711.08, 28,046.53 and 9,332.57 is: 13,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.08 : 28,046.53 = 9,332.57 : x
  2. Step 2: Convert to fraction form
    18,711.08/28,046.53 = 9,332.57/x
  3. Step 3: Cross multiply
    18,711.08x = 28,046.53 × 9,332.57
  4. Step 4: Simplify right side
    18,711.08x = 261,746,204.48
  5. Step 5: Solve for x
    x = 261,746,204.48/18,711.08
  6. Step 6: Final answer
    x = 13,988.83

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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.