Home / 14,142.76-21,195.90-5,812.76

Finding the Fourth Proportional to 14,142.76, 21,195.90 and 5,812.76

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Solution

The fourth proportional to 14,142.76, 21,195.90 and 5,812.76 is: 8,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.76 : 21,195.90 = 5,812.76 : x
  2. Step 2: Convert to fraction form
    14,142.76/21,195.90 = 5,812.76/x
  3. Step 3: Cross multiply
    14,142.76x = 21,195.90 × 5,812.76
  4. Step 4: Simplify right side
    14,142.76x = 123,206,679.68
  5. Step 5: Solve for x
    x = 123,206,679.68/14,142.76
  6. Step 6: Final answer
    x = 8,711.64

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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.