Home / 8,759.20-13,188.17-7,725.64

Finding the Fourth Proportional to 8,759.20, 13,188.17 and 7,725.64

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Solution

The fourth proportional to 8,759.20, 13,188.17 and 7,725.64 is: 11,632.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.20 : 13,188.17 = 7,725.64 : x
  2. Step 2: Convert to fraction form
    8,759.20/13,188.17 = 7,725.64/x
  3. Step 3: Cross multiply
    8,759.20x = 13,188.17 × 7,725.64
  4. Step 4: Simplify right side
    8,759.20x = 101,887,053.68
  5. Step 5: Solve for x
    x = 101,887,053.68/8,759.20
  6. Step 6: Final answer
    x = 11,632.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.