Home / 8,780.17-13,151.49-7,107.07

Finding the Fourth Proportional to 8,780.17, 13,151.49 and 7,107.07

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Solution

The fourth proportional to 8,780.17, 13,151.49 and 7,107.07 is: 10,645.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.17 : 13,151.49 = 7,107.07 : x
  2. Step 2: Convert to fraction form
    8,780.17/13,151.49 = 7,107.07/x
  3. Step 3: Cross multiply
    8,780.17x = 13,151.49 × 7,107.07
  4. Step 4: Simplify right side
    8,780.17x = 93,468,560.03
  5. Step 5: Solve for x
    x = 93,468,560.03/8,780.17
  6. Step 6: Final answer
    x = 10,645.42

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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.