Home / 12,376.56-17,079.60-6,787.44

Finding the Fourth Proportional to 12,376.56, 17,079.60 and 6,787.44

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Solution

The fourth proportional to 12,376.56, 17,079.60 and 6,787.44 is: 9,366.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.56 : 17,079.60 = 6,787.44 : x
  2. Step 2: Convert to fraction form
    12,376.56/17,079.60 = 6,787.44/x
  3. Step 3: Cross multiply
    12,376.56x = 17,079.60 × 6,787.44
  4. Step 4: Simplify right side
    12,376.56x = 115,926,760.22
  5. Step 5: Solve for x
    x = 115,926,760.22/12,376.56
  6. Step 6: Final answer
    x = 9,366.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.