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Finding the Fourth Proportional to 8,531.78, 11,773.55 and 4,754.75

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Solution

The fourth proportional to 8,531.78, 11,773.55 and 4,754.75 is: 6,561.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.78 : 11,773.55 = 4,754.75 : x
  2. Step 2: Convert to fraction form
    8,531.78/11,773.55 = 4,754.75/x
  3. Step 3: Cross multiply
    8,531.78x = 11,773.55 × 4,754.75
  4. Step 4: Simplify right side
    8,531.78x = 55,980,204.22
  5. Step 5: Solve for x
    x = 55,980,204.22/8,531.78
  6. Step 6: Final answer
    x = 6,561.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.