Home / 11,512.88-15,818.90-9,150.92

Finding the Fourth Proportional to 11,512.88, 15,818.90 and 9,150.92

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Solution

The fourth proportional to 11,512.88, 15,818.90 and 9,150.92 is: 12,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.88 : 15,818.90 = 9,150.92 : x
  2. Step 2: Convert to fraction form
    11,512.88/15,818.90 = 9,150.92/x
  3. Step 3: Cross multiply
    11,512.88x = 15,818.90 × 9,150.92
  4. Step 4: Simplify right side
    11,512.88x = 144,757,363.54
  5. Step 5: Solve for x
    x = 144,757,363.54/11,512.88
  6. Step 6: Final answer
    x = 12,573.52

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.