Home / 15,141.56-22,715.38-5,278.20

Finding the Fourth Proportional to 15,141.56, 22,715.38 and 5,278.20

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Solution

The fourth proportional to 15,141.56, 22,715.38 and 5,278.20 is: 7,918.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.56 : 22,715.38 = 5,278.20 : x
  2. Step 2: Convert to fraction form
    15,141.56/22,715.38 = 5,278.20/x
  3. Step 3: Cross multiply
    15,141.56x = 22,715.38 × 5,278.20
  4. Step 4: Simplify right side
    15,141.56x = 119,896,318.72
  5. Step 5: Solve for x
    x = 119,896,318.72/15,141.56
  6. Step 6: Final answer
    x = 7,918.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.