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Finding the Fourth Proportional to 12,162.63, 18,243.95 and 9,393.34

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Solution

The fourth proportional to 12,162.63, 18,243.95 and 9,393.34 is: 14,090.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.63 : 18,243.95 = 9,393.34 : x
  2. Step 2: Convert to fraction form
    12,162.63/18,243.95 = 9,393.34/x
  3. Step 3: Cross multiply
    12,162.63x = 18,243.95 × 9,393.34
  4. Step 4: Simplify right side
    12,162.63x = 171,371,601.13
  5. Step 5: Solve for x
    x = 171,371,601.13/12,162.63
  6. Step 6: Final answer
    x = 14,090.01

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Similar ratio
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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.