Home / 18,213.43-25,135.15-10,660.46

Finding the Fourth Proportional to 18,213.43, 25,135.15 and 10,660.46

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Solution

The fourth proportional to 18,213.43, 25,135.15 and 10,660.46 is: 14,711.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.43 : 25,135.15 = 10,660.46 : x
  2. Step 2: Convert to fraction form
    18,213.43/25,135.15 = 10,660.46/x
  3. Step 3: Cross multiply
    18,213.43x = 25,135.15 × 10,660.46
  4. Step 4: Simplify right side
    18,213.43x = 267,952,261.17
  5. Step 5: Solve for x
    x = 267,952,261.17/18,213.43
  6. Step 6: Final answer
    x = 14,711.80

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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.