Home / 10,207.28-14,085.68-5,731.22

Finding the Fourth Proportional to 10,207.28, 14,085.68 and 5,731.22

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Solution

The fourth proportional to 10,207.28, 14,085.68 and 5,731.22 is: 7,908.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.28 : 14,085.68 = 5,731.22 : x
  2. Step 2: Convert to fraction form
    10,207.28/14,085.68 = 5,731.22/x
  3. Step 3: Cross multiply
    10,207.28x = 14,085.68 × 5,731.22
  4. Step 4: Simplify right side
    10,207.28x = 80,728,031.85
  5. Step 5: Solve for x
    x = 80,728,031.85/10,207.28
  6. Step 6: Final answer
    x = 7,908.87

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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.