Home / 7,947.12-11,916.04-2,398.80

Finding the Fourth Proportional to 7,947.12, 11,916.04 and 2,398.80

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Solution

The fourth proportional to 7,947.12, 11,916.04 and 2,398.80 is: 3,596.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.12 : 11,916.04 = 2,398.80 : x
  2. Step 2: Convert to fraction form
    7,947.12/11,916.04 = 2,398.80/x
  3. Step 3: Cross multiply
    7,947.12x = 11,916.04 × 2,398.80
  4. Step 4: Simplify right side
    7,947.12x = 28,584,137.17
  5. Step 5: Solve for x
    x = 28,584,137.17/7,947.12
  6. Step 6: Final answer
    x = 3,596.79

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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.