Home / 10,428.03-15,631.10-4,876.70

Finding the Fourth Proportional to 10,428.03, 15,631.10 and 4,876.70

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Solution

The fourth proportional to 10,428.03, 15,631.10 and 4,876.70 is: 7,309.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.03 : 15,631.10 = 4,876.70 : x
  2. Step 2: Convert to fraction form
    10,428.03/15,631.10 = 4,876.70/x
  3. Step 3: Cross multiply
    10,428.03x = 15,631.10 × 4,876.70
  4. Step 4: Simplify right side
    10,428.03x = 76,228,082.83
  5. Step 5: Solve for x
    x = 76,228,082.83/10,428.03
  6. Step 6: Final answer
    x = 7,309.92

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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.