Home / 13,274.55-18,318.87-7,306.43

Finding the Fourth Proportional to 13,274.55, 18,318.87 and 7,306.43

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Solution

The fourth proportional to 13,274.55, 18,318.87 and 7,306.43 is: 10,082.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.55 : 18,318.87 = 7,306.43 : x
  2. Step 2: Convert to fraction form
    13,274.55/18,318.87 = 7,306.43/x
  3. Step 3: Cross multiply
    13,274.55x = 18,318.87 × 7,306.43
  4. Step 4: Simplify right side
    13,274.55x = 133,845,449.74
  5. Step 5: Solve for x
    x = 133,845,449.74/13,274.55
  6. Step 6: Final answer
    x = 10,082.86

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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.