Home / 8,934.05-13,384.62-7,949.90

Finding the Fourth Proportional to 8,934.05, 13,384.62 and 7,949.90

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Solution

The fourth proportional to 8,934.05, 13,384.62 and 7,949.90 is: 11,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,934.05 : 13,384.62 = 7,949.90 : x
  2. Step 2: Convert to fraction form
    8,934.05/13,384.62 = 7,949.90/x
  3. Step 3: Cross multiply
    8,934.05x = 13,384.62 × 7,949.90
  4. Step 4: Simplify right side
    8,934.05x = 106,406,323.61
  5. Step 5: Solve for x
    x = 106,406,323.61/8,934.05
  6. Step 6: Final answer
    x = 11,910.21

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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.