Home / 15,414.70-21,272.22-8,341.12

Finding the Fourth Proportional to 15,414.70, 21,272.22 and 8,341.12

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Solution

The fourth proportional to 15,414.70, 21,272.22 and 8,341.12 is: 11,510.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.70 : 21,272.22 = 8,341.12 : x
  2. Step 2: Convert to fraction form
    15,414.70/21,272.22 = 8,341.12/x
  3. Step 3: Cross multiply
    15,414.70x = 21,272.22 × 8,341.12
  4. Step 4: Simplify right side
    15,414.70x = 177,434,139.69
  5. Step 5: Solve for x
    x = 177,434,139.69/15,414.70
  6. Step 6: Final answer
    x = 11,510.71

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Half scale
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Double scale
Find fourth proportional to 15,415.70, 21,273.60 and 8,342.12
Similar ratio
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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.