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Finding the Fourth Proportional to 6,654.36, 9,985.20 and 5,609.52

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Solution

The fourth proportional to 6,654.36, 9,985.20 and 5,609.52 is: 8,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,654.36 : 9,985.20 = 5,609.52 : x
  2. Step 2: Convert to fraction form
    6,654.36/9,985.20 = 5,609.52/x
  3. Step 3: Cross multiply
    6,654.36x = 9,985.20 × 5,609.52
  4. Step 4: Simplify right side
    6,654.36x = 56,012,179.10
  5. Step 5: Solve for x
    x = 56,012,179.10/6,654.36
  6. Step 6: Final answer
    x = 8,417.37

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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.