Home / 7,828.88-11,724.72-6,432.48

Finding the Fourth Proportional to 7,828.88, 11,724.72 and 6,432.48

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Solution

The fourth proportional to 7,828.88, 11,724.72 and 6,432.48 is: 9,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.88 : 11,724.72 = 6,432.48 : x
  2. Step 2: Convert to fraction form
    7,828.88/11,724.72 = 6,432.48/x
  3. Step 3: Cross multiply
    7,828.88x = 11,724.72 × 6,432.48
  4. Step 4: Simplify right side
    7,828.88x = 75,419,026.91
  5. Step 5: Solve for x
    x = 75,419,026.91/7,828.88
  6. Step 6: Final answer
    x = 9,633.44

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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.