Home / 17,005.60-25,508.40-5,318.86

Finding the Fourth Proportional to 17,005.60, 25,508.40 and 5,318.86

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Solution

The fourth proportional to 17,005.60, 25,508.40 and 5,318.86 is: 7,978.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,005.60 : 25,508.40 = 5,318.86 : x
  2. Step 2: Convert to fraction form
    17,005.60/25,508.40 = 5,318.86/x
  3. Step 3: Cross multiply
    17,005.60x = 25,508.40 × 5,318.86
  4. Step 4: Simplify right side
    17,005.60x = 135,675,608.42
  5. Step 5: Solve for x
    x = 135,675,608.42/17,005.60
  6. Step 6: Final answer
    x = 7,978.29

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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.