Home / 7,839.54-11,759.26-1,916.45

Finding the Fourth Proportional to 7,839.54, 11,759.26 and 1,916.45

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Solution

The fourth proportional to 7,839.54, 11,759.26 and 1,916.45 is: 2,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.54 : 11,759.26 = 1,916.45 : x
  2. Step 2: Convert to fraction form
    7,839.54/11,759.26 = 1,916.45/x
  3. Step 3: Cross multiply
    7,839.54x = 11,759.26 × 1,916.45
  4. Step 4: Simplify right side
    7,839.54x = 22,536,017.93
  5. Step 5: Solve for x
    x = 22,536,017.93/7,839.54
  6. Step 6: Final answer
    x = 2,874.66

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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.