Home / 8,908.07-12,294.05-5,131.37

Finding the Fourth Proportional to 8,908.07, 12,294.05 and 5,131.37

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Solution

The fourth proportional to 8,908.07, 12,294.05 and 5,131.37 is: 7,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.07 : 12,294.05 = 5,131.37 : x
  2. Step 2: Convert to fraction form
    8,908.07/12,294.05 = 5,131.37/x
  3. Step 3: Cross multiply
    8,908.07x = 12,294.05 × 5,131.37
  4. Step 4: Simplify right side
    8,908.07x = 63,085,324.43
  5. Step 5: Solve for x
    x = 63,085,324.43/8,908.07
  6. Step 6: Final answer
    x = 7,081.82

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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.