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Finding the Fourth Proportional to 12,161.46, 18,242.18 and 2,927.46

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Solution

The fourth proportional to 12,161.46, 18,242.18 and 2,927.46 is: 4,391.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.46 : 18,242.18 = 2,927.46 : x
  2. Step 2: Convert to fraction form
    12,161.46/18,242.18 = 2,927.46/x
  3. Step 3: Cross multiply
    12,161.46x = 18,242.18 × 2,927.46
  4. Step 4: Simplify right side
    12,161.46x = 53,403,252.26
  5. Step 5: Solve for x
    x = 53,403,252.26/12,161.46
  6. Step 6: Final answer
    x = 4,391.19

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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.