Home / 13,274.28-18,318.72-7,306.56

Finding the Fourth Proportional to 13,274.28, 18,318.72 and 7,306.56

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Solution

The fourth proportional to 13,274.28, 18,318.72 and 7,306.56 is: 10,083.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.28 : 18,318.72 = 7,306.56 : x
  2. Step 2: Convert to fraction form
    13,274.28/18,318.72 = 7,306.56/x
  3. Step 3: Cross multiply
    13,274.28x = 18,318.72 × 7,306.56
  4. Step 4: Simplify right side
    13,274.28x = 133,846,826.80
  5. Step 5: Solve for x
    x = 133,846,826.80/13,274.28
  6. Step 6: Final answer
    x = 10,083.17

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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.