Home / 8,104.88-11,161.04-7,763.46

Finding the Fourth Proportional to 8,104.88, 11,161.04 and 7,763.46

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Solution

The fourth proportional to 8,104.88, 11,161.04 and 7,763.46 is: 10,690.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.88 : 11,161.04 = 7,763.46 : x
  2. Step 2: Convert to fraction form
    8,104.88/11,161.04 = 7,763.46/x
  3. Step 3: Cross multiply
    8,104.88x = 11,161.04 × 7,763.46
  4. Step 4: Simplify right side
    8,104.88x = 86,648,248.78
  5. Step 5: Solve for x
    x = 86,648,248.78/8,104.88
  6. Step 6: Final answer
    x = 10,690.88

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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.