Home / 10,512.86-15,769.29-2,721.65

Finding the Fourth Proportional to 10,512.86, 15,769.29 and 2,721.65

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Solution

The fourth proportional to 10,512.86, 15,769.29 and 2,721.65 is: 4,082.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.86 : 15,769.29 = 2,721.65 : x
  2. Step 2: Convert to fraction form
    10,512.86/15,769.29 = 2,721.65/x
  3. Step 3: Cross multiply
    10,512.86x = 15,769.29 × 2,721.65
  4. Step 4: Simplify right side
    10,512.86x = 42,918,488.13
  5. Step 5: Solve for x
    x = 42,918,488.13/10,512.86
  6. Step 6: Final answer
    x = 4,082.48

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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.