Home / 14,321.28-21,487.68-5,093.76

Finding the Fourth Proportional to 14,321.28, 21,487.68 and 5,093.76

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Solution

The fourth proportional to 14,321.28, 21,487.68 and 5,093.76 is: 7,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,321.28 : 21,487.68 = 5,093.76 : x
  2. Step 2: Convert to fraction form
    14,321.28/21,487.68 = 5,093.76/x
  3. Step 3: Cross multiply
    14,321.28x = 21,487.68 × 5,093.76
  4. Step 4: Simplify right side
    14,321.28x = 109,453,084.88
  5. Step 5: Solve for x
    x = 109,453,084.88/14,321.28
  6. Step 6: Final answer
    x = 7,642.69

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1.5x scale

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.