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Finding the Fourth Proportional to 36,871.19, 55,306.78 and 9,169.19

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Solution

The fourth proportional to 36,871.19, 55,306.78 and 9,169.19 is: 13,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,871.19 : 55,306.78 = 9,169.19 : x
  2. Step 2: Convert to fraction form
    36,871.19/55,306.78 = 9,169.19/x
  3. Step 3: Cross multiply
    36,871.19x = 55,306.78 × 9,169.19
  4. Step 4: Simplify right side
    36,871.19x = 507,118,374.11
  5. Step 5: Solve for x
    x = 507,118,374.11/36,871.19
  6. Step 6: Final answer
    x = 13,753.78

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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.