Home / 11,382.12-17,081.16-4,718.72

Finding the Fourth Proportional to 11,382.12, 17,081.16 and 4,718.72

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Solution

The fourth proportional to 11,382.12, 17,081.16 and 4,718.72 is: 7,081.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.12 : 17,081.16 = 4,718.72 : x
  2. Step 2: Convert to fraction form
    11,382.12/17,081.16 = 4,718.72/x
  3. Step 3: Cross multiply
    11,382.12x = 17,081.16 × 4,718.72
  4. Step 4: Simplify right side
    11,382.12x = 80,601,211.32
  5. Step 5: Solve for x
    x = 80,601,211.32/11,382.12
  6. Step 6: Final answer
    x = 7,081.39

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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.