Home / 8,527.18-12,789.96-2,979.50

Finding the Fourth Proportional to 8,527.18, 12,789.96 and 2,979.50

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Solution

The fourth proportional to 8,527.18, 12,789.96 and 2,979.50 is: 4,468.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,527.18 : 12,789.96 = 2,979.50 : x
  2. Step 2: Convert to fraction form
    8,527.18/12,789.96 = 2,979.50/x
  3. Step 3: Cross multiply
    8,527.18x = 12,789.96 × 2,979.50
  4. Step 4: Simplify right side
    8,527.18x = 38,107,685.82
  5. Step 5: Solve for x
    x = 38,107,685.82/8,527.18
  6. Step 6: Final answer
    x = 4,468.97

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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.