Home / 11,156.70-15,397.11-8,499.54

Finding the Fourth Proportional to 11,156.70, 15,397.11 and 8,499.54

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Solution

The fourth proportional to 11,156.70, 15,397.11 and 8,499.54 is: 11,730.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.70 : 15,397.11 = 8,499.54 : x
  2. Step 2: Convert to fraction form
    11,156.70/15,397.11 = 8,499.54/x
  3. Step 3: Cross multiply
    11,156.70x = 15,397.11 × 8,499.54
  4. Step 4: Simplify right side
    11,156.70x = 130,868,352.33
  5. Step 5: Solve for x
    x = 130,868,352.33/11,156.70
  6. Step 6: Final answer
    x = 11,730.02

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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.