Home / 13,319.55-18,381.03-7,351.23

Finding the Fourth Proportional to 13,319.55, 18,381.03 and 7,351.23

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Solution

The fourth proportional to 13,319.55, 18,381.03 and 7,351.23 is: 10,144.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.55 : 18,381.03 = 7,351.23 : x
  2. Step 2: Convert to fraction form
    13,319.55/18,381.03 = 7,351.23/x
  3. Step 3: Cross multiply
    13,319.55x = 18,381.03 × 7,351.23
  4. Step 4: Simplify right side
    13,319.55x = 135,123,179.17
  5. Step 5: Solve for x
    x = 135,123,179.17/13,319.55
  6. Step 6: Final answer
    x = 10,144.73

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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.