Home / 7,854.12-11,781.27-2,010.57

Finding the Fourth Proportional to 7,854.12, 11,781.27 and 2,010.57

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Solution

The fourth proportional to 7,854.12, 11,781.27 and 2,010.57 is: 3,015.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.12 : 11,781.27 = 2,010.57 : x
  2. Step 2: Convert to fraction form
    7,854.12/11,781.27 = 2,010.57/x
  3. Step 3: Cross multiply
    7,854.12x = 11,781.27 × 2,010.57
  4. Step 4: Simplify right side
    7,854.12x = 23,687,068.02
  5. Step 5: Solve for x
    x = 23,687,068.02/7,854.12
  6. Step 6: Final answer
    x = 3,015.88

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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.