Home / 13,753.20-18,979.34-7,465.56

Finding the Fourth Proportional to 13,753.20, 18,979.34 and 7,465.56

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Solution

The fourth proportional to 13,753.20, 18,979.34 and 7,465.56 is: 10,302.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.20 : 18,979.34 = 7,465.56 : x
  2. Step 2: Convert to fraction form
    13,753.20/18,979.34 = 7,465.56/x
  3. Step 3: Cross multiply
    13,753.20x = 18,979.34 × 7,465.56
  4. Step 4: Simplify right side
    13,753.20x = 141,691,401.53
  5. Step 5: Solve for x
    x = 141,691,401.53/13,753.20
  6. Step 6: Final answer
    x = 10,302.43

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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.