Home / 18,387.26-25,374.28-10,003.76

Finding the Fourth Proportional to 18,387.26, 25,374.28 and 10,003.76

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Solution

The fourth proportional to 18,387.26, 25,374.28 and 10,003.76 is: 13,805.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.26 : 25,374.28 = 10,003.76 : x
  2. Step 2: Convert to fraction form
    18,387.26/25,374.28 = 10,003.76/x
  3. Step 3: Cross multiply
    18,387.26x = 25,374.28 × 10,003.76
  4. Step 4: Simplify right side
    18,387.26x = 253,838,207.29
  5. Step 5: Solve for x
    x = 253,838,207.29/18,387.26
  6. Step 6: Final answer
    x = 13,805.11

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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.