Home / 10,961.70-15,127.11-6,246.78

Finding the Fourth Proportional to 10,961.70, 15,127.11 and 6,246.78

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Solution

The fourth proportional to 10,961.70, 15,127.11 and 6,246.78 is: 8,620.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.70 : 15,127.11 = 6,246.78 : x
  2. Step 2: Convert to fraction form
    10,961.70/15,127.11 = 6,246.78/x
  3. Step 3: Cross multiply
    10,961.70x = 15,127.11 × 6,246.78
  4. Step 4: Simplify right side
    10,961.70x = 94,495,728.21
  5. Step 5: Solve for x
    x = 94,495,728.21/10,961.70
  6. Step 6: Final answer
    x = 8,620.54

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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.