Home / 10,990.12-15,167.34-6,275.92

Finding the Fourth Proportional to 10,990.12, 15,167.34 and 6,275.92

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Solution

The fourth proportional to 10,990.12, 15,167.34 and 6,275.92 is: 8,661.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.12 : 15,167.34 = 6,275.92 : x
  2. Step 2: Convert to fraction form
    10,990.12/15,167.34 = 6,275.92/x
  3. Step 3: Cross multiply
    10,990.12x = 15,167.34 × 6,275.92
  4. Step 4: Simplify right side
    10,990.12x = 95,189,012.45
  5. Step 5: Solve for x
    x = 95,189,012.45/10,990.12
  6. Step 6: Final answer
    x = 8,661.33

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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.