Home / 14,122.26-21,178.74-4,759.76

Finding the Fourth Proportional to 14,122.26, 21,178.74 and 4,759.76

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Solution

The fourth proportional to 14,122.26, 21,178.74 and 4,759.76 is: 7,138.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.26 : 21,178.74 = 4,759.76 : x
  2. Step 2: Convert to fraction form
    14,122.26/21,178.74 = 4,759.76/x
  3. Step 3: Cross multiply
    14,122.26x = 21,178.74 × 4,759.76
  4. Step 4: Simplify right side
    14,122.26x = 100,805,613.61
  5. Step 5: Solve for x
    x = 100,805,613.61/14,122.26
  6. Step 6: Final answer
    x = 7,138.07

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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.