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Finding the Fourth Proportional to 34,689.64, 52,034.76 and 8,394.42

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Solution

The fourth proportional to 34,689.64, 52,034.76 and 8,394.42 is: 12,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,689.64 : 52,034.76 = 8,394.42 : x
  2. Step 2: Convert to fraction form
    34,689.64/52,034.76 = 8,394.42/x
  3. Step 3: Cross multiply
    34,689.64x = 52,034.76 × 8,394.42
  4. Step 4: Simplify right side
    34,689.64x = 436,801,630.04
  5. Step 5: Solve for x
    x = 436,801,630.04/34,689.64
  6. Step 6: Final answer
    x = 12,591.70

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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.