Home / 11,240.45-15,512.34-6,461.95

Finding the Fourth Proportional to 11,240.45, 15,512.34 and 6,461.95

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Solution

The fourth proportional to 11,240.45, 15,512.34 and 6,461.95 is: 8,917.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.45 : 15,512.34 = 6,461.95 : x
  2. Step 2: Convert to fraction form
    11,240.45/15,512.34 = 6,461.95/x
  3. Step 3: Cross multiply
    11,240.45x = 15,512.34 × 6,461.95
  4. Step 4: Simplify right side
    11,240.45x = 100,239,887.90
  5. Step 5: Solve for x
    x = 100,239,887.90/11,240.45
  6. Step 6: Final answer
    x = 8,917.78

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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.