Home / 13,525.17-20,287.76-8,874.61

Finding the Fourth Proportional to 13,525.17, 20,287.76 and 8,874.61

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Solution

The fourth proportional to 13,525.17, 20,287.76 and 8,874.61 is: 13,311.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.17 : 20,287.76 = 8,874.61 : x
  2. Step 2: Convert to fraction form
    13,525.17/20,287.76 = 8,874.61/x
  3. Step 3: Cross multiply
    13,525.17x = 20,287.76 × 8,874.61
  4. Step 4: Simplify right side
    13,525.17x = 180,045,811.96
  5. Step 5: Solve for x
    x = 180,045,811.96/13,525.17
  6. Step 6: Final answer
    x = 13,311.91

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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.