Home / 15,031.27-20,743.17-8,317.18

Finding the Fourth Proportional to 15,031.27, 20,743.17 and 8,317.18

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Solution

The fourth proportional to 15,031.27, 20,743.17 and 8,317.18 is: 11,477.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,031.27 : 20,743.17 = 8,317.18 : x
  2. Step 2: Convert to fraction form
    15,031.27/20,743.17 = 8,317.18/x
  3. Step 3: Cross multiply
    15,031.27x = 20,743.17 × 8,317.18
  4. Step 4: Simplify right side
    15,031.27x = 172,524,574.94
  5. Step 5: Solve for x
    x = 172,524,574.94/15,031.27
  6. Step 6: Final answer
    x = 11,477.71

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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.