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Finding the Fourth Proportional to 26,672.78, 40,009.14 and 8,204.78

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Solution

The fourth proportional to 26,672.78, 40,009.14 and 8,204.78 is: 12,307.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,672.78 : 40,009.14 = 8,204.78 : x
  2. Step 2: Convert to fraction form
    26,672.78/40,009.14 = 8,204.78/x
  3. Step 3: Cross multiply
    26,672.78x = 40,009.14 × 8,204.78
  4. Step 4: Simplify right side
    26,672.78x = 328,266,191.69
  5. Step 5: Solve for x
    x = 328,266,191.69/26,672.78
  6. Step 6: Final answer
    x = 12,307.16

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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.