Home / 10,972.80-16,451.10-4,727.70

Finding the Fourth Proportional to 10,972.80, 16,451.10 and 4,727.70

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Solution

The fourth proportional to 10,972.80, 16,451.10 and 4,727.70 is: 7,088.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.80 : 16,451.10 = 4,727.70 : x
  2. Step 2: Convert to fraction form
    10,972.80/16,451.10 = 4,727.70/x
  3. Step 3: Cross multiply
    10,972.80x = 16,451.10 × 4,727.70
  4. Step 4: Simplify right side
    10,972.80x = 77,775,865.47
  5. Step 5: Solve for x
    x = 77,775,865.47/10,972.80
  6. Step 6: Final answer
    x = 7,088.06

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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.