Home / 8,145.38-12,219.73-2,598.57

Finding the Fourth Proportional to 8,145.38, 12,219.73 and 2,598.57

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Solution

The fourth proportional to 8,145.38, 12,219.73 and 2,598.57 is: 3,898.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.38 : 12,219.73 = 2,598.57 : x
  2. Step 2: Convert to fraction form
    8,145.38/12,219.73 = 2,598.57/x
  3. Step 3: Cross multiply
    8,145.38x = 12,219.73 × 2,598.57
  4. Step 4: Simplify right side
    8,145.38x = 31,753,817.29
  5. Step 5: Solve for x
    x = 31,753,817.29/8,145.38
  6. Step 6: Final answer
    x = 3,898.38

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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.