Home / 8,553.90-12,840.45-6,614.70

Finding the Fourth Proportional to 8,553.90, 12,840.45 and 6,614.70

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Solution

The fourth proportional to 8,553.90, 12,840.45 and 6,614.70 is: 9,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.90 : 12,840.45 = 6,614.70 : x
  2. Step 2: Convert to fraction form
    8,553.90/12,840.45 = 6,614.70/x
  3. Step 3: Cross multiply
    8,553.90x = 12,840.45 × 6,614.70
  4. Step 4: Simplify right side
    8,553.90x = 84,935,724.62
  5. Step 5: Solve for x
    x = 84,935,724.62/8,553.90
  6. Step 6: Final answer
    x = 9,929.47

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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.