Home / 18,414.47-25,412.13-10,456.85

Finding the Fourth Proportional to 18,414.47, 25,412.13 and 10,456.85

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Solution

The fourth proportional to 18,414.47, 25,412.13 and 10,456.85 is: 14,430.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.47 : 25,412.13 = 10,456.85 : x
  2. Step 2: Convert to fraction form
    18,414.47/25,412.13 = 10,456.85/x
  3. Step 3: Cross multiply
    18,414.47x = 25,412.13 × 10,456.85
  4. Step 4: Simplify right side
    18,414.47x = 265,730,895.12
  5. Step 5: Solve for x
    x = 265,730,895.12/18,414.47
  6. Step 6: Final answer
    x = 14,430.55

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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.