Home / 7,565.20-11,331.60-6,107.20

Finding the Fourth Proportional to 7,565.20, 11,331.60 and 6,107.20

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Solution

The fourth proportional to 7,565.20, 11,331.60 and 6,107.20 is: 9,147.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,565.20 : 11,331.60 = 6,107.20 : x
  2. Step 2: Convert to fraction form
    7,565.20/11,331.60 = 6,107.20/x
  3. Step 3: Cross multiply
    7,565.20x = 11,331.60 × 6,107.20
  4. Step 4: Simplify right side
    7,565.20x = 69,204,347.52
  5. Step 5: Solve for x
    x = 69,204,347.52/7,565.20
  6. Step 6: Final answer
    x = 9,147.72

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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.