Home / 11,508.39-15,842.40-8,518.59

Finding the Fourth Proportional to 11,508.39, 15,842.40 and 8,518.59

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Solution

The fourth proportional to 11,508.39, 15,842.40 and 8,518.59 is: 11,726.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,508.39 : 15,842.40 = 8,518.59 : x
  2. Step 2: Convert to fraction form
    11,508.39/15,842.40 = 8,518.59/x
  3. Step 3: Cross multiply
    11,508.39x = 15,842.40 × 8,518.59
  4. Step 4: Simplify right side
    11,508.39x = 134,954,910.22
  5. Step 5: Solve for x
    x = 134,954,910.22/11,508.39
  6. Step 6: Final answer
    x = 11,726.65

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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.