Home / 18,755.28-25,881.12-10,371.96

Finding the Fourth Proportional to 18,755.28, 25,881.12 and 10,371.96

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Solution

The fourth proportional to 18,755.28, 25,881.12 and 10,371.96 is: 14,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.28 : 25,881.12 = 10,371.96 : x
  2. Step 2: Convert to fraction form
    18,755.28/25,881.12 = 10,371.96/x
  3. Step 3: Cross multiply
    18,755.28x = 25,881.12 × 10,371.96
  4. Step 4: Simplify right side
    18,755.28x = 268,437,941.40
  5. Step 5: Solve for x
    x = 268,437,941.40/18,755.28
  6. Step 6: Final answer
    x = 14,312.66

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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.