Home / 10,104.66-15,103.62-8,777.88

Finding the Fourth Proportional to 10,104.66, 15,103.62 and 8,777.88

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Solution

The fourth proportional to 10,104.66, 15,103.62 and 8,777.88 is: 13,120.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,104.66 : 15,103.62 = 8,777.88 : x
  2. Step 2: Convert to fraction form
    10,104.66/15,103.62 = 8,777.88/x
  3. Step 3: Cross multiply
    10,104.66x = 15,103.62 × 8,777.88
  4. Step 4: Simplify right side
    10,104.66x = 132,577,763.93
  5. Step 5: Solve for x
    x = 132,577,763.93/10,104.66
  6. Step 6: Final answer
    x = 13,120.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.