Home / 10,952.26-15,118.94-7,990.68

Finding the Fourth Proportional to 10,952.26, 15,118.94 and 7,990.68

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Solution

The fourth proportional to 10,952.26, 15,118.94 and 7,990.68 is: 11,030.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,952.26 : 15,118.94 = 7,990.68 : x
  2. Step 2: Convert to fraction form
    10,952.26/15,118.94 = 7,990.68/x
  3. Step 3: Cross multiply
    10,952.26x = 15,118.94 × 7,990.68
  4. Step 4: Simplify right side
    10,952.26x = 120,810,611.48
  5. Step 5: Solve for x
    x = 120,810,611.48/10,952.26
  6. Step 6: Final answer
    x = 11,030.66

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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.