Home / 18,404.28-25,398.90-10,447.56

Finding the Fourth Proportional to 18,404.28, 25,398.90 and 10,447.56

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Solution

The fourth proportional to 18,404.28, 25,398.90 and 10,447.56 is: 14,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.28 : 25,398.90 = 10,447.56 : x
  2. Step 2: Convert to fraction form
    18,404.28/25,398.90 = 10,447.56/x
  3. Step 3: Cross multiply
    18,404.28x = 25,398.90 × 10,447.56
  4. Step 4: Simplify right side
    18,404.28x = 265,356,531.68
  5. Step 5: Solve for x
    x = 265,356,531.68/18,404.28
  6. Step 6: Final answer
    x = 14,418.20

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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.