Home / 7,939.86-11,909.85-3,008.17

Finding the Fourth Proportional to 7,939.86, 11,909.85 and 3,008.17

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Solution

The fourth proportional to 7,939.86, 11,909.85 and 3,008.17 is: 4,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.86 : 11,909.85 = 3,008.17 : x
  2. Step 2: Convert to fraction form
    7,939.86/11,909.85 = 3,008.17/x
  3. Step 3: Cross multiply
    7,939.86x = 11,909.85 × 3,008.17
  4. Step 4: Simplify right side
    7,939.86x = 35,826,853.47
  5. Step 5: Solve for x
    x = 35,826,853.47/7,939.86
  6. Step 6: Final answer
    x = 4,512.28

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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.