Home / 11,689.26-16,132.66-7,718.64

Finding the Fourth Proportional to 11,689.26, 16,132.66 and 7,718.64

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Solution

The fourth proportional to 11,689.26, 16,132.66 and 7,718.64 is: 10,652.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.26 : 16,132.66 = 7,718.64 : x
  2. Step 2: Convert to fraction form
    11,689.26/16,132.66 = 7,718.64/x
  3. Step 3: Cross multiply
    11,689.26x = 16,132.66 × 7,718.64
  4. Step 4: Simplify right side
    11,689.26x = 124,522,194.78
  5. Step 5: Solve for x
    x = 124,522,194.78/11,689.26
  6. Step 6: Final answer
    x = 10,652.70

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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.