Home / 8,939.23-12,325.62-7,255.33

Finding the Fourth Proportional to 8,939.23, 12,325.62 and 7,255.33

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Solution

The fourth proportional to 8,939.23, 12,325.62 and 7,255.33 is: 10,003.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.23 : 12,325.62 = 7,255.33 : x
  2. Step 2: Convert to fraction form
    8,939.23/12,325.62 = 7,255.33/x
  3. Step 3: Cross multiply
    8,939.23x = 12,325.62 × 7,255.33
  4. Step 4: Simplify right side
    8,939.23x = 89,426,440.55
  5. Step 5: Solve for x
    x = 89,426,440.55/8,939.23
  6. Step 6: Final answer
    x = 10,003.82

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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.