Home / 12,009.68-18,007.56-5,761.18

Finding the Fourth Proportional to 12,009.68, 18,007.56 and 5,761.18

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Solution

The fourth proportional to 12,009.68, 18,007.56 and 5,761.18 is: 8,638.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,009.68 : 18,007.56 = 5,761.18 : x
  2. Step 2: Convert to fraction form
    12,009.68/18,007.56 = 5,761.18/x
  3. Step 3: Cross multiply
    12,009.68x = 18,007.56 × 5,761.18
  4. Step 4: Simplify right side
    12,009.68x = 103,744,794.52
  5. Step 5: Solve for x
    x = 103,744,794.52/12,009.68
  6. Step 6: Final answer
    x = 8,638.43

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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.