Home / 8,761.60-13,131.44-4,380.32

Finding the Fourth Proportional to 8,761.60, 13,131.44 and 4,380.32

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Solution

The fourth proportional to 8,761.60, 13,131.44 and 4,380.32 is: 6,565.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.60 : 13,131.44 = 4,380.32 : x
  2. Step 2: Convert to fraction form
    8,761.60/13,131.44 = 4,380.32/x
  3. Step 3: Cross multiply
    8,761.60x = 13,131.44 × 4,380.32
  4. Step 4: Simplify right side
    8,761.60x = 57,519,909.26
  5. Step 5: Solve for x
    x = 57,519,909.26/8,761.60
  6. Step 6: Final answer
    x = 6,565.00

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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.