Home / 15,022.14-20,731.34-8,649.70

Finding the Fourth Proportional to 15,022.14, 20,731.34 and 8,649.70

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Solution

The fourth proportional to 15,022.14, 20,731.34 and 8,649.70 is: 11,937.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,022.14 : 20,731.34 = 8,649.70 : x
  2. Step 2: Convert to fraction form
    15,022.14/20,731.34 = 8,649.70/x
  3. Step 3: Cross multiply
    15,022.14x = 20,731.34 × 8,649.70
  4. Step 4: Simplify right side
    15,022.14x = 179,319,871.60
  5. Step 5: Solve for x
    x = 179,319,871.60/15,022.14
  6. Step 6: Final answer
    x = 11,937.04

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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.