Home / 12,874.89-19,315.97-7,614.55

Finding the Fourth Proportional to 12,874.89, 19,315.97 and 7,614.55

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Solution

The fourth proportional to 12,874.89, 19,315.97 and 7,614.55 is: 11,423.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,874.89 : 19,315.97 = 7,614.55 : x
  2. Step 2: Convert to fraction form
    12,874.89/19,315.97 = 7,614.55/x
  3. Step 3: Cross multiply
    12,874.89x = 19,315.97 × 7,614.55
  4. Step 4: Simplify right side
    12,874.89x = 147,082,419.36
  5. Step 5: Solve for x
    x = 147,082,419.36/12,874.89
  6. Step 6: Final answer
    x = 11,423.97

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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.