Home / 7,938.88-11,915.68-4,046.20

Finding the Fourth Proportional to 7,938.88, 11,915.68 and 4,046.20

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Solution

The fourth proportional to 7,938.88, 11,915.68 and 4,046.20 is: 6,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.88 : 11,915.68 = 4,046.20 : x
  2. Step 2: Convert to fraction form
    7,938.88/11,915.68 = 4,046.20/x
  3. Step 3: Cross multiply
    7,938.88x = 11,915.68 × 4,046.20
  4. Step 4: Simplify right side
    7,938.88x = 48,213,224.42
  5. Step 5: Solve for x
    x = 48,213,224.42/7,938.88
  6. Step 6: Final answer
    x = 6,073.05

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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.