Home / 15,242.87-22,871.60-5,386.79

Finding the Fourth Proportional to 15,242.87, 22,871.60 and 5,386.79

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Solution

The fourth proportional to 15,242.87, 22,871.60 and 5,386.79 is: 8,082.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.87 : 22,871.60 = 5,386.79 : x
  2. Step 2: Convert to fraction form
    15,242.87/22,871.60 = 5,386.79/x
  3. Step 3: Cross multiply
    15,242.87x = 22,871.60 × 5,386.79
  4. Step 4: Simplify right side
    15,242.87x = 123,204,506.16
  5. Step 5: Solve for x
    x = 123,204,506.16/15,242.87
  6. Step 6: Final answer
    x = 8,082.76

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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.