Home / 8,532.05-12,789.98-2,981.79

Finding the Fourth Proportional to 8,532.05, 12,789.98 and 2,981.79

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Solution

The fourth proportional to 8,532.05, 12,789.98 and 2,981.79 is: 4,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532.05 : 12,789.98 = 2,981.79 : x
  2. Step 2: Convert to fraction form
    8,532.05/12,789.98 = 2,981.79/x
  3. Step 3: Cross multiply
    8,532.05x = 12,789.98 × 2,981.79
  4. Step 4: Simplify right side
    8,532.05x = 38,136,970.51
  5. Step 5: Solve for x
    x = 38,136,970.51/8,532.05
  6. Step 6: Final answer
    x = 4,469.85

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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.