Home / 14,319.38-19,760.68-8,031.76

Finding the Fourth Proportional to 14,319.38, 19,760.68 and 8,031.76

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Solution

The fourth proportional to 14,319.38, 19,760.68 and 8,031.76 is: 11,083.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319.38 : 19,760.68 = 8,031.76 : x
  2. Step 2: Convert to fraction form
    14,319.38/19,760.68 = 8,031.76/x
  3. Step 3: Cross multiply
    14,319.38x = 19,760.68 × 8,031.76
  4. Step 4: Simplify right side
    14,319.38x = 158,713,039.20
  5. Step 5: Solve for x
    x = 158,713,039.20/14,319.38
  6. Step 6: Final answer
    x = 11,083.79

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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.