Home / 12,908.11-17,818.64-8,722.03

Finding the Fourth Proportional to 12,908.11, 17,818.64 and 8,722.03

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Solution

The fourth proportional to 12,908.11, 17,818.64 and 8,722.03 is: 12,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908.11 : 17,818.64 = 8,722.03 : x
  2. Step 2: Convert to fraction form
    12,908.11/17,818.64 = 8,722.03/x
  3. Step 3: Cross multiply
    12,908.11x = 17,818.64 × 8,722.03
  4. Step 4: Simplify right side
    12,908.11x = 155,414,712.64
  5. Step 5: Solve for x
    x = 155,414,712.64/12,908.11
  6. Step 6: Final answer
    x = 12,040.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.