Home / 18,403.12-25,394.82-10,443.88

Finding the Fourth Proportional to 18,403.12, 25,394.82 and 10,443.88

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Solution

The fourth proportional to 18,403.12, 25,394.82 and 10,443.88 is: 14,411.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.12 : 25,394.82 = 10,443.88 : x
  2. Step 2: Convert to fraction form
    18,403.12/25,394.82 = 10,443.88/x
  3. Step 3: Cross multiply
    18,403.12x = 25,394.82 × 10,443.88
  4. Step 4: Simplify right side
    18,403.12x = 265,220,452.70
  5. Step 5: Solve for x
    x = 265,220,452.70/18,403.12
  6. Step 6: Final answer
    x = 14,411.71

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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.