Home / 14,077.26-19,428.68-8,107.78

Finding the Fourth Proportional to 14,077.26, 19,428.68 and 8,107.78

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Solution

The fourth proportional to 14,077.26, 19,428.68 and 8,107.78 is: 11,189.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.26 : 19,428.68 = 8,107.78 : x
  2. Step 2: Convert to fraction form
    14,077.26/19,428.68 = 8,107.78/x
  3. Step 3: Cross multiply
    14,077.26x = 19,428.68 × 8,107.78
  4. Step 4: Simplify right side
    14,077.26x = 157,523,463.13
  5. Step 5: Solve for x
    x = 157,523,463.13/14,077.26
  6. Step 6: Final answer
    x = 11,189.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.