Home / 7,743.12-11,612.04-2,547.72

Finding the Fourth Proportional to 7,743.12, 11,612.04 and 2,547.72

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Solution

The fourth proportional to 7,743.12, 11,612.04 and 2,547.72 is: 3,820.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.12 : 11,612.04 = 2,547.72 : x
  2. Step 2: Convert to fraction form
    7,743.12/11,612.04 = 2,547.72/x
  3. Step 3: Cross multiply
    7,743.12x = 11,612.04 × 2,547.72
  4. Step 4: Simplify right side
    7,743.12x = 29,584,226.55
  5. Step 5: Solve for x
    x = 29,584,226.55/7,743.12
  6. Step 6: Final answer
    x = 3,820.71

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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.