Home / 18,386.40-25,372.50-10,002.92

Finding the Fourth Proportional to 18,386.40, 25,372.50 and 10,002.92

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Solution

The fourth proportional to 18,386.40, 25,372.50 and 10,002.92 is: 13,803.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.40 : 25,372.50 = 10,002.92 : x
  2. Step 2: Convert to fraction form
    18,386.40/25,372.50 = 10,002.92/x
  3. Step 3: Cross multiply
    18,386.40x = 25,372.50 × 10,002.92
  4. Step 4: Simplify right side
    18,386.40x = 253,799,087.70
  5. Step 5: Solve for x
    x = 253,799,087.70/18,386.40
  6. Step 6: Final answer
    x = 13,803.63

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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.