Home / 11,140.20-15,372.82-6,360.70

Finding the Fourth Proportional to 11,140.20, 15,372.82 and 6,360.70

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Solution

The fourth proportional to 11,140.20, 15,372.82 and 6,360.70 is: 8,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.20 : 15,372.82 = 6,360.70 : x
  2. Step 2: Convert to fraction form
    11,140.20/15,372.82 = 6,360.70/x
  3. Step 3: Cross multiply
    11,140.20x = 15,372.82 × 6,360.70
  4. Step 4: Simplify right side
    11,140.20x = 97,781,896.17
  5. Step 5: Solve for x
    x = 97,781,896.17/11,140.20
  6. Step 6: Final answer
    x = 8,777.39

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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.