Home / 10,754.57-16,117.27-7,991.66

Finding the Fourth Proportional to 10,754.57, 16,117.27 and 7,991.66

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Solution

The fourth proportional to 10,754.57, 16,117.27 and 7,991.66 is: 11,976.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,754.57 : 16,117.27 = 7,991.66 : x
  2. Step 2: Convert to fraction form
    10,754.57/16,117.27 = 7,991.66/x
  3. Step 3: Cross multiply
    10,754.57x = 16,117.27 × 7,991.66
  4. Step 4: Simplify right side
    10,754.57x = 128,803,741.97
  5. Step 5: Solve for x
    x = 128,803,741.97/10,754.57
  6. Step 6: Final answer
    x = 11,976.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.