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Finding the Fourth Proportional to 6,655.30, 10,001.22 and 6,221.90

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Solution

The fourth proportional to 6,655.30, 10,001.22 and 6,221.90 is: 9,349.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.30 : 10,001.22 = 6,221.90 : x
  2. Step 2: Convert to fraction form
    6,655.30/10,001.22 = 6,221.90/x
  3. Step 3: Cross multiply
    6,655.30x = 10,001.22 × 6,221.90
  4. Step 4: Simplify right side
    6,655.30x = 62,226,590.72
  5. Step 5: Solve for x
    x = 62,226,590.72/6,655.30
  6. Step 6: Final answer
    x = 9,349.93

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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.