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Finding the Fourth Proportional to 17,885.74, 26,817.67 and 8,528.62

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Solution

The fourth proportional to 17,885.74, 26,817.67 and 8,528.62 is: 12,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,885.74 : 26,817.67 = 8,528.62 : x
  2. Step 2: Convert to fraction form
    17,885.74/26,817.67 = 8,528.62/x
  3. Step 3: Cross multiply
    17,885.74x = 26,817.67 × 8,528.62
  4. Step 4: Simplify right side
    17,885.74x = 228,717,561.31
  5. Step 5: Solve for x
    x = 228,717,561.31/17,885.74
  6. Step 6: Final answer
    x = 12,787.71

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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.