Home / 15,126.53-20,874.24-8,411.90

Finding the Fourth Proportional to 15,126.53, 20,874.24 and 8,411.90

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Solution

The fourth proportional to 15,126.53, 20,874.24 and 8,411.90 is: 11,608.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,126.53 : 20,874.24 = 8,411.90 : x
  2. Step 2: Convert to fraction form
    15,126.53/20,874.24 = 8,411.90/x
  3. Step 3: Cross multiply
    15,126.53x = 20,874.24 × 8,411.90
  4. Step 4: Simplify right side
    15,126.53x = 175,591,915.08
  5. Step 5: Solve for x
    x = 175,591,915.08/15,126.53
  6. Step 6: Final answer
    x = 11,608.21

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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.