Home / 18,711.20-28,046.71-9,332.69

Finding the Fourth Proportional to 18,711.20, 28,046.71 and 9,332.69

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Solution

The fourth proportional to 18,711.20, 28,046.71 and 9,332.69 is: 13,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.20 : 28,046.71 = 9,332.69 : x
  2. Step 2: Convert to fraction form
    18,711.20/28,046.71 = 9,332.69/x
  3. Step 3: Cross multiply
    18,711.20x = 28,046.71 × 9,332.69
  4. Step 4: Simplify right side
    18,711.20x = 261,751,249.95
  5. Step 5: Solve for x
    x = 261,751,249.95/18,711.20
  6. Step 6: Final answer
    x = 13,989.01

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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.