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Finding the Fourth Proportional to 7,470.63, 11,207.97 and 6,654.60

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Solution

The fourth proportional to 7,470.63, 11,207.97 and 6,654.60 is: 9,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.63 : 11,207.97 = 6,654.60 : x
  2. Step 2: Convert to fraction form
    7,470.63/11,207.97 = 6,654.60/x
  3. Step 3: Cross multiply
    7,470.63x = 11,207.97 × 6,654.60
  4. Step 4: Simplify right side
    7,470.63x = 74,584,557.16
  5. Step 5: Solve for x
    x = 74,584,557.16/7,470.63
  6. Step 6: Final answer
    x = 9,983.70

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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.