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Finding the Fourth Proportional to 26,780.76, 40,160.88 and 9,245.88

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Solution

The fourth proportional to 26,780.76, 40,160.88 and 9,245.88 is: 13,865.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,780.76 : 40,160.88 = 9,245.88 : x
  2. Step 2: Convert to fraction form
    26,780.76/40,160.88 = 9,245.88/x
  3. Step 3: Cross multiply
    26,780.76x = 40,160.88 × 9,245.88
  4. Step 4: Simplify right side
    26,780.76x = 371,322,677.17
  5. Step 5: Solve for x
    x = 371,322,677.17/26,780.76
  6. Step 6: Final answer
    x = 13,865.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.