Home / 11,383.12-15,708.22-8,397.88

Finding the Fourth Proportional to 11,383.12, 15,708.22 and 8,397.88

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Solution

The fourth proportional to 11,383.12, 15,708.22 and 8,397.88 is: 11,588.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,383.12 : 15,708.22 = 8,397.88 : x
  2. Step 2: Convert to fraction form
    11,383.12/15,708.22 = 8,397.88/x
  3. Step 3: Cross multiply
    11,383.12x = 15,708.22 × 8,397.88
  4. Step 4: Simplify right side
    11,383.12x = 131,915,746.57
  5. Step 5: Solve for x
    x = 131,915,746.57/11,383.12
  6. Step 6: Final answer
    x = 11,588.72

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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.