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Finding the Fourth Proportional to 6,387.60, 9,581.40 and 6,023.10

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Solution

The fourth proportional to 6,387.60, 9,581.40 and 6,023.10 is: 9,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.60 : 9,581.40 = 6,023.10 : x
  2. Step 2: Convert to fraction form
    6,387.60/9,581.40 = 6,023.10/x
  3. Step 3: Cross multiply
    6,387.60x = 9,581.40 × 6,023.10
  4. Step 4: Simplify right side
    6,387.60x = 57,709,730.34
  5. Step 5: Solve for x
    x = 57,709,730.34/6,387.60
  6. Step 6: Final answer
    x = 9,034.65

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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.