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Finding the Fourth Proportional to 11,370.68, 15,691.05 and 6,335.45

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Solution

The fourth proportional to 11,370.68, 15,691.05 and 6,335.45 is: 8,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,370.68 : 15,691.05 = 6,335.45 : x
  2. Step 2: Convert to fraction form
    11,370.68/15,691.05 = 6,335.45/x
  3. Step 3: Cross multiply
    11,370.68x = 15,691.05 × 6,335.45
  4. Step 4: Simplify right side
    11,370.68x = 99,409,862.72
  5. Step 5: Solve for x
    x = 99,409,862.72/11,370.68
  6. Step 6: Final answer
    x = 8,742.65

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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.