Home / 7,853.15-11,781.17-2,588.47

Finding the Fourth Proportional to 7,853.15, 11,781.17 and 2,588.47

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Solution

The fourth proportional to 7,853.15, 11,781.17 and 2,588.47 is: 3,883.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,853.15 : 11,781.17 = 2,588.47 : x
  2. Step 2: Convert to fraction form
    7,853.15/11,781.17 = 2,588.47/x
  3. Step 3: Cross multiply
    7,853.15x = 11,781.17 × 2,588.47
  4. Step 4: Simplify right side
    7,853.15x = 30,495,205.11
  5. Step 5: Solve for x
    x = 30,495,205.11/7,853.15
  6. Step 6: Final answer
    x = 3,883.18

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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.