Home / 11,179.15-15,427.20-6,143.71

Finding the Fourth Proportional to 11,179.15, 15,427.20 and 6,143.71

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Solution

The fourth proportional to 11,179.15, 15,427.20 and 6,143.71 is: 8,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.15 : 15,427.20 = 6,143.71 : x
  2. Step 2: Convert to fraction form
    11,179.15/15,427.20 = 6,143.71/x
  3. Step 3: Cross multiply
    11,179.15x = 15,427.20 × 6,143.71
  4. Step 4: Simplify right side
    11,179.15x = 94,780,242.91
  5. Step 5: Solve for x
    x = 94,780,242.91/11,179.15
  6. Step 6: Final answer
    x = 8,478.30

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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.