Home / 9,121.44-13,682.16-2,547.80

Finding the Fourth Proportional to 9,121.44, 13,682.16 and 2,547.80

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Solution

The fourth proportional to 9,121.44, 13,682.16 and 2,547.80 is: 3,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.44 : 13,682.16 = 2,547.80 : x
  2. Step 2: Convert to fraction form
    9,121.44/13,682.16 = 2,547.80/x
  3. Step 3: Cross multiply
    9,121.44x = 13,682.16 × 2,547.80
  4. Step 4: Simplify right side
    9,121.44x = 34,859,407.25
  5. Step 5: Solve for x
    x = 34,859,407.25/9,121.44
  6. Step 6: Final answer
    x = 3,821.70

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Similar ratio
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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.