Home / 7,446.79-11,168.56-2,515.78

Finding the Fourth Proportional to 7,446.79, 11,168.56 and 2,515.78

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Solution

The fourth proportional to 7,446.79, 11,168.56 and 2,515.78 is: 3,773.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,446.79 : 11,168.56 = 2,515.78 : x
  2. Step 2: Convert to fraction form
    7,446.79/11,168.56 = 2,515.78/x
  3. Step 3: Cross multiply
    7,446.79x = 11,168.56 × 2,515.78
  4. Step 4: Simplify right side
    7,446.79x = 28,097,639.88
  5. Step 5: Solve for x
    x = 28,097,639.88/7,446.79
  6. Step 6: Final answer
    x = 3,773.12

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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.