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Finding the Fourth Proportional to 6,665.47, 9,998.21 and 4,935.31

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Solution

The fourth proportional to 6,665.47, 9,998.21 and 4,935.31 is: 7,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.47 : 9,998.21 = 4,935.31 : x
  2. Step 2: Convert to fraction form
    6,665.47/9,998.21 = 4,935.31/x
  3. Step 3: Cross multiply
    6,665.47x = 9,998.21 × 4,935.31
  4. Step 4: Simplify right side
    6,665.47x = 49,344,191.13
  5. Step 5: Solve for x
    x = 49,344,191.13/6,665.47
  6. Step 6: Final answer
    x = 7,402.96

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Similar ratio
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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.