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Finding the Fourth Proportional to 36,868, 55,302.20 and 9,166

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Solution

The fourth proportional to 36,868, 55,302.20 and 9,166 is: 13,749.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,868 : 55,302.20 = 9,166 : x
  2. Step 2: Convert to fraction form
    36,868/55,302.20 = 9,166/x
  3. Step 3: Cross multiply
    36,868x = 55,302.20 × 9,166
  4. Step 4: Simplify right side
    36,868x = 506,899,965.20
  5. Step 5: Solve for x
    x = 506,899,965.20/36,868
  6. Step 6: Final answer
    x = 13,749.05

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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.