Home / 10,924.74-15,049.80-8,685.90

Finding the Fourth Proportional to 10,924.74, 15,049.80 and 8,685.90

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Solution

The fourth proportional to 10,924.74, 15,049.80 and 8,685.90 is: 11,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,924.74 : 15,049.80 = 8,685.90 : x
  2. Step 2: Convert to fraction form
    10,924.74/15,049.80 = 8,685.90/x
  3. Step 3: Cross multiply
    10,924.74x = 15,049.80 × 8,685.90
  4. Step 4: Simplify right side
    10,924.74x = 130,721,057.82
  5. Step 5: Solve for x
    x = 130,721,057.82/10,924.74
  6. Step 6: Final answer
    x = 11,965.60

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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.