Home / 10,990.44-15,167.40-6,275.64

Finding the Fourth Proportional to 10,990.44, 15,167.40 and 6,275.64

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Solution

The fourth proportional to 10,990.44, 15,167.40 and 6,275.64 is: 8,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.44 : 15,167.40 = 6,275.64 : x
  2. Step 2: Convert to fraction form
    10,990.44/15,167.40 = 6,275.64/x
  3. Step 3: Cross multiply
    10,990.44x = 15,167.40 × 6,275.64
  4. Step 4: Simplify right side
    10,990.44x = 95,185,142.14
  5. Step 5: Solve for x
    x = 95,185,142.14/10,990.44
  6. Step 6: Final answer
    x = 8,660.72

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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.