Home / 13,251.10-18,286.13-7,282.76

Finding the Fourth Proportional to 13,251.10, 18,286.13 and 7,282.76

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Solution

The fourth proportional to 13,251.10, 18,286.13 and 7,282.76 is: 10,049.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.10 : 18,286.13 = 7,282.76 : x
  2. Step 2: Convert to fraction form
    13,251.10/18,286.13 = 7,282.76/x
  3. Step 3: Cross multiply
    13,251.10x = 18,286.13 × 7,282.76
  4. Step 4: Simplify right side
    13,251.10x = 133,173,368.27
  5. Step 5: Solve for x
    x = 133,173,368.27/13,251.10
  6. Step 6: Final answer
    x = 10,049.99

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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.