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Finding the Fourth Proportional to 18,571.88, 27,854.58 and 8,575.77

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Solution

The fourth proportional to 18,571.88, 27,854.58 and 8,575.77 is: 12,862.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.88 : 27,854.58 = 8,575.77 : x
  2. Step 2: Convert to fraction form
    18,571.88/27,854.58 = 8,575.77/x
  3. Step 3: Cross multiply
    18,571.88x = 27,854.58 × 8,575.77
  4. Step 4: Simplify right side
    18,571.88x = 238,874,471.53
  5. Step 5: Solve for x
    x = 238,874,471.53/18,571.88
  6. Step 6: Final answer
    x = 12,862.16

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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.