Home / 14,079.28-21,122-5,314.24

Finding the Fourth Proportional to 14,079.28, 21,122 and 5,314.24

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Solution

The fourth proportional to 14,079.28, 21,122 and 5,314.24 is: 7,972.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.28 : 21,122 = 5,314.24 : x
  2. Step 2: Convert to fraction form
    14,079.28/21,122 = 5,314.24/x
  3. Step 3: Cross multiply
    14,079.28x = 21,122 × 5,314.24
  4. Step 4: Simplify right side
    14,079.28x = 112,247,377.28
  5. Step 5: Solve for x
    x = 112,247,377.28/14,079.28
  6. Step 6: Final answer
    x = 7,972.52

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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.