Home / 10,491.57-15,739.30-3,471.64

Finding the Fourth Proportional to 10,491.57, 15,739.30 and 3,471.64

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Solution

The fourth proportional to 10,491.57, 15,739.30 and 3,471.64 is: 5,208.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.57 : 15,739.30 = 3,471.64 : x
  2. Step 2: Convert to fraction form
    10,491.57/15,739.30 = 3,471.64/x
  3. Step 3: Cross multiply
    10,491.57x = 15,739.30 × 3,471.64
  4. Step 4: Simplify right side
    10,491.57x = 54,641,213.69
  5. Step 5: Solve for x
    x = 54,641,213.69/10,491.57
  6. Step 6: Final answer
    x = 5,208.11

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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.