Home / 11,123.76-15,350.82-6,155.76

Finding the Fourth Proportional to 11,123.76, 15,350.82 and 6,155.76

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Solution

The fourth proportional to 11,123.76, 15,350.82 and 6,155.76 is: 8,494.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.76 : 15,350.82 = 6,155.76 : x
  2. Step 2: Convert to fraction form
    11,123.76/15,350.82 = 6,155.76/x
  3. Step 3: Cross multiply
    11,123.76x = 15,350.82 × 6,155.76
  4. Step 4: Simplify right side
    11,123.76x = 94,495,963.72
  5. Step 5: Solve for x
    x = 94,495,963.72/11,123.76
  6. Step 6: Final answer
    x = 8,494.97

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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.