Home / 10,527.52-15,791.20-8,671.12

Finding the Fourth Proportional to 10,527.52, 15,791.20 and 8,671.12

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Solution

The fourth proportional to 10,527.52, 15,791.20 and 8,671.12 is: 13,006.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,527.52 : 15,791.20 = 8,671.12 : x
  2. Step 2: Convert to fraction form
    10,527.52/15,791.20 = 8,671.12/x
  3. Step 3: Cross multiply
    10,527.52x = 15,791.20 × 8,671.12
  4. Step 4: Simplify right side
    10,527.52x = 136,927,390.14
  5. Step 5: Solve for x
    x = 136,927,390.14/10,527.52
  6. Step 6: Final answer
    x = 13,006.61

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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.