Home / 10,082.55-15,120.23-3,508.95

Finding the Fourth Proportional to 10,082.55, 15,120.23 and 3,508.95

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Solution

The fourth proportional to 10,082.55, 15,120.23 and 3,508.95 is: 5,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.55 : 15,120.23 = 3,508.95 : x
  2. Step 2: Convert to fraction form
    10,082.55/15,120.23 = 3,508.95/x
  3. Step 3: Cross multiply
    10,082.55x = 15,120.23 × 3,508.95
  4. Step 4: Simplify right side
    10,082.55x = 53,056,113.51
  5. Step 5: Solve for x
    x = 53,056,113.51/10,082.55
  6. Step 6: Final answer
    x = 5,262.17

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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.