Home / 10,889.25-15,029.15-6,173.61

Finding the Fourth Proportional to 10,889.25, 15,029.15 and 6,173.61

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Solution

The fourth proportional to 10,889.25, 15,029.15 and 6,173.61 is: 8,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.25 : 15,029.15 = 6,173.61 : x
  2. Step 2: Convert to fraction form
    10,889.25/15,029.15 = 6,173.61/x
  3. Step 3: Cross multiply
    10,889.25x = 15,029.15 × 6,173.61
  4. Step 4: Simplify right side
    10,889.25x = 92,784,079.86
  5. Step 5: Solve for x
    x = 92,784,079.86/10,889.25
  6. Step 6: Final answer
    x = 8,520.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.