Home / 7,732.20-10,663.56-6,239.64

Finding the Fourth Proportional to 7,732.20, 10,663.56 and 6,239.64

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Solution

The fourth proportional to 7,732.20, 10,663.56 and 6,239.64 is: 8,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,732.20 : 10,663.56 = 6,239.64 : x
  2. Step 2: Convert to fraction form
    7,732.20/10,663.56 = 6,239.64/x
  3. Step 3: Cross multiply
    7,732.20x = 10,663.56 × 6,239.64
  4. Step 4: Simplify right side
    7,732.20x = 66,536,775.52
  5. Step 5: Solve for x
    x = 66,536,775.52/7,732.20
  6. Step 6: Final answer
    x = 8,605.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.