Home / 11,127.78-15,356.34-6,159.78

Finding the Fourth Proportional to 11,127.78, 15,356.34 and 6,159.78

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Solution

The fourth proportional to 11,127.78, 15,356.34 and 6,159.78 is: 8,500.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.78 : 15,356.34 = 6,159.78 : x
  2. Step 2: Convert to fraction form
    11,127.78/15,356.34 = 6,159.78/x
  3. Step 3: Cross multiply
    11,127.78x = 15,356.34 × 6,159.78
  4. Step 4: Simplify right side
    11,127.78x = 94,591,676.01
  5. Step 5: Solve for x
    x = 94,591,676.01/11,127.78
  6. Step 6: Final answer
    x = 8,500.50

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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.