Home / 10,082.08-15,130.50-5,155.84

Finding the Fourth Proportional to 10,082.08, 15,130.50 and 5,155.84

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Solution

The fourth proportional to 10,082.08, 15,130.50 and 5,155.84 is: 7,737.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.08 : 15,130.50 = 5,155.84 : x
  2. Step 2: Convert to fraction form
    10,082.08/15,130.50 = 5,155.84/x
  3. Step 3: Cross multiply
    10,082.08x = 15,130.50 × 5,155.84
  4. Step 4: Simplify right side
    10,082.08x = 78,010,437.12
  5. Step 5: Solve for x
    x = 78,010,437.12/10,082.08
  6. Step 6: Final answer
    x = 7,737.53

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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.