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Finding the Fourth Proportional to 34,638.95, 51,958.43 and 8,343.68

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Solution

The fourth proportional to 34,638.95, 51,958.43 and 8,343.68 is: 12,515.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,638.95 : 51,958.43 = 8,343.68 : x
  2. Step 2: Convert to fraction form
    34,638.95/51,958.43 = 8,343.68/x
  3. Step 3: Cross multiply
    34,638.95x = 51,958.43 × 8,343.68
  4. Step 4: Simplify right side
    34,638.95x = 433,524,211.71
  5. Step 5: Solve for x
    x = 433,524,211.71/34,638.95
  6. Step 6: Final answer
    x = 12,515.51

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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.