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Finding the Fourth Proportional to 26,682.60, 40,013.10 and 9,143.40

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Solution

The fourth proportional to 26,682.60, 40,013.10 and 9,143.40 is: 13,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,682.60 : 40,013.10 = 9,143.40 : x
  2. Step 2: Convert to fraction form
    26,682.60/40,013.10 = 9,143.40/x
  3. Step 3: Cross multiply
    26,682.60x = 40,013.10 × 9,143.40
  4. Step 4: Simplify right side
    26,682.60x = 365,855,778.54
  5. Step 5: Solve for x
    x = 365,855,778.54/26,682.60
  6. Step 6: Final answer
    x = 13,711.40

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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.