Home / 8,638.02-12,958.38-3,707.70

Finding the Fourth Proportional to 8,638.02, 12,958.38 and 3,707.70

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Solution

The fourth proportional to 8,638.02, 12,958.38 and 3,707.70 is: 5,562.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638.02 : 12,958.38 = 3,707.70 : x
  2. Step 2: Convert to fraction form
    8,638.02/12,958.38 = 3,707.70/x
  3. Step 3: Cross multiply
    8,638.02x = 12,958.38 × 3,707.70
  4. Step 4: Simplify right side
    8,638.02x = 48,045,785.53
  5. Step 5: Solve for x
    x = 48,045,785.53/8,638.02
  6. Step 6: Final answer
    x = 5,562.13

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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.