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Finding the Fourth Proportional to 12,162.95, 18,244.42 and 9,393.66

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Solution

The fourth proportional to 12,162.95, 18,244.42 and 9,393.66 is: 14,090.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.95 : 18,244.42 = 9,393.66 : x
  2. Step 2: Convert to fraction form
    12,162.95/18,244.42 = 9,393.66/x
  3. Step 3: Cross multiply
    12,162.95x = 18,244.42 × 9,393.66
  4. Step 4: Simplify right side
    12,162.95x = 171,381,740.19
  5. Step 5: Solve for x
    x = 171,381,740.19/12,162.95
  6. Step 6: Final answer
    x = 14,090.48

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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.