Home / 8,819.51-13,229.78-2,816.87

Finding the Fourth Proportional to 8,819.51, 13,229.78 and 2,816.87

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Solution

The fourth proportional to 8,819.51, 13,229.78 and 2,816.87 is: 4,225.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.51 : 13,229.78 = 2,816.87 : x
  2. Step 2: Convert to fraction form
    8,819.51/13,229.78 = 2,816.87/x
  3. Step 3: Cross multiply
    8,819.51x = 13,229.78 × 2,816.87
  4. Step 4: Simplify right side
    8,819.51x = 37,266,490.16
  5. Step 5: Solve for x
    x = 37,266,490.16/8,819.51
  6. Step 6: Final answer
    x = 4,225.46

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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.