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Finding the Fourth Proportional to 26,916.18, 40,380.78 and 8,448.18

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Solution

The fourth proportional to 26,916.18, 40,380.78 and 8,448.18 is: 12,674.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,916.18 : 40,380.78 = 8,448.18 : x
  2. Step 2: Convert to fraction form
    26,916.18/40,380.78 = 8,448.18/x
  3. Step 3: Cross multiply
    26,916.18x = 40,380.78 × 8,448.18
  4. Step 4: Simplify right side
    26,916.18x = 341,144,097.98
  5. Step 5: Solve for x
    x = 341,144,097.98/26,916.18
  6. Step 6: Final answer
    x = 12,674.31

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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.