Home / 11,311.36-15,609.38-6,275.57

Finding the Fourth Proportional to 11,311.36, 15,609.38 and 6,275.57

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Solution

The fourth proportional to 11,311.36, 15,609.38 and 6,275.57 is: 8,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.36 : 15,609.38 = 6,275.57 : x
  2. Step 2: Convert to fraction form
    11,311.36/15,609.38 = 6,275.57/x
  3. Step 3: Cross multiply
    11,311.36x = 15,609.38 × 6,275.57
  4. Step 4: Simplify right side
    11,311.36x = 97,957,647.42
  5. Step 5: Solve for x
    x = 97,957,647.42/11,311.36
  6. Step 6: Final answer
    x = 8,660.11

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Double scale
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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.