Home / 15,814.75-23,721.75-5,141.10

Finding the Fourth Proportional to 15,814.75, 23,721.75 and 5,141.10

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Solution

The fourth proportional to 15,814.75, 23,721.75 and 5,141.10 is: 7,711.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,814.75 : 23,721.75 = 5,141.10 : x
  2. Step 2: Convert to fraction form
    15,814.75/23,721.75 = 5,141.10/x
  3. Step 3: Cross multiply
    15,814.75x = 23,721.75 × 5,141.10
  4. Step 4: Simplify right side
    15,814.75x = 121,955,757.46
  5. Step 5: Solve for x
    x = 121,955,757.46/15,814.75
  6. Step 6: Final answer
    x = 7,711.52

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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.