Home / 11,660.79-17,475.56-6,387.83

Finding the Fourth Proportional to 11,660.79, 17,475.56 and 6,387.83

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Solution

The fourth proportional to 11,660.79, 17,475.56 and 6,387.83 is: 9,573.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,660.79 : 17,475.56 = 6,387.83 : x
  2. Step 2: Convert to fraction form
    11,660.79/17,475.56 = 6,387.83/x
  3. Step 3: Cross multiply
    11,660.79x = 17,475.56 × 6,387.83
  4. Step 4: Simplify right side
    11,660.79x = 111,630,787.12
  5. Step 5: Solve for x
    x = 111,630,787.12/11,660.79
  6. Step 6: Final answer
    x = 9,573.18

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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.