Home / 11,127.75-15,356.30-6,414.77

Finding the Fourth Proportional to 11,127.75, 15,356.30 and 6,414.77

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Solution

The fourth proportional to 11,127.75, 15,356.30 and 6,414.77 is: 8,852.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.75 : 15,356.30 = 6,414.77 : x
  2. Step 2: Convert to fraction form
    11,127.75/15,356.30 = 6,414.77/x
  3. Step 3: Cross multiply
    11,127.75x = 15,356.30 × 6,414.77
  4. Step 4: Simplify right side
    11,127.75x = 98,507,023.70
  5. Step 5: Solve for x
    x = 98,507,023.70/11,127.75
  6. Step 6: Final answer
    x = 8,852.38

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Half scale
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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.