Home / 11,638.31-16,079.66-8,117.24

Finding the Fourth Proportional to 11,638.31, 16,079.66 and 8,117.24

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Solution

The fourth proportional to 11,638.31, 16,079.66 and 8,117.24 is: 11,214.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,638.31 : 16,079.66 = 8,117.24 : x
  2. Step 2: Convert to fraction form
    11,638.31/16,079.66 = 8,117.24/x
  3. Step 3: Cross multiply
    11,638.31x = 16,079.66 × 8,117.24
  4. Step 4: Simplify right side
    11,638.31x = 130,522,338.35
  5. Step 5: Solve for x
    x = 130,522,338.35/11,638.31
  6. Step 6: Final answer
    x = 11,214.89

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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.