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Finding the Fourth Proportional to 26,667.68, 40,006.98 and 9,138.87

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Solution

The fourth proportional to 26,667.68, 40,006.98 and 9,138.87 is: 13,710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,667.68 : 40,006.98 = 9,138.87 : x
  2. Step 2: Convert to fraction form
    26,667.68/40,006.98 = 9,138.87/x
  3. Step 3: Cross multiply
    26,667.68x = 40,006.98 × 9,138.87
  4. Step 4: Simplify right side
    26,667.68x = 365,618,589.31
  5. Step 5: Solve for x
    x = 365,618,589.31/26,667.68
  6. Step 6: Final answer
    x = 13,710.18

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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.