Home / 7,612.64-11,405.50-6,787.04

Finding the Fourth Proportional to 7,612.64, 11,405.50 and 6,787.04

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Solution

The fourth proportional to 7,612.64, 11,405.50 and 6,787.04 is: 10,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.64 : 11,405.50 = 6,787.04 : x
  2. Step 2: Convert to fraction form
    7,612.64/11,405.50 = 6,787.04/x
  3. Step 3: Cross multiply
    7,612.64x = 11,405.50 × 6,787.04
  4. Step 4: Simplify right side
    7,612.64x = 77,409,584.72
  5. Step 5: Solve for x
    x = 77,409,584.72/7,612.64
  6. Step 6: Final answer
    x = 10,168.56

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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.