Home / 8,988.26-12,403.46-5,009.18

Finding the Fourth Proportional to 8,988.26, 12,403.46 and 5,009.18

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Solution

The fourth proportional to 8,988.26, 12,403.46 and 5,009.18 is: 6,912.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.26 : 12,403.46 = 5,009.18 : x
  2. Step 2: Convert to fraction form
    8,988.26/12,403.46 = 5,009.18/x
  3. Step 3: Cross multiply
    8,988.26x = 12,403.46 × 5,009.18
  4. Step 4: Simplify right side
    8,988.26x = 62,131,138.72
  5. Step 5: Solve for x
    x = 62,131,138.72/8,988.26
  6. Step 6: Final answer
    x = 6,912.48

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1.5x scale

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.