Home / 10,513.38-15,769.87-2,721.99

Finding the Fourth Proportional to 10,513.38, 15,769.87 and 2,721.99

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Solution

The fourth proportional to 10,513.38, 15,769.87 and 2,721.99 is: 4,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.38 : 15,769.87 = 2,721.99 : x
  2. Step 2: Convert to fraction form
    10,513.38/15,769.87 = 2,721.99/x
  3. Step 3: Cross multiply
    10,513.38x = 15,769.87 × 2,721.99
  4. Step 4: Simplify right side
    10,513.38x = 42,925,428.44
  5. Step 5: Solve for x
    x = 42,925,428.44/10,513.38
  6. Step 6: Final answer
    x = 4,082.93

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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.