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Finding the Fourth Proportional to 26,672.76, 40,009.12 and 8,204.76

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Solution

The fourth proportional to 26,672.76, 40,009.12 and 8,204.76 is: 12,307.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,672.76 : 40,009.12 = 8,204.76 : x
  2. Step 2: Convert to fraction form
    26,672.76/40,009.12 = 8,204.76/x
  3. Step 3: Cross multiply
    26,672.76x = 40,009.12 × 8,204.76
  4. Step 4: Simplify right side
    26,672.76x = 328,265,227.41
  5. Step 5: Solve for x
    x = 328,265,227.41/26,672.76
  6. Step 6: Final answer
    x = 12,307.13

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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.