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Finding the Fourth Proportional to 8,819.99, 12,167.37 and 5,282.51

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Solution

The fourth proportional to 8,819.99, 12,167.37 and 5,282.51 is: 7,287.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.99 : 12,167.37 = 5,282.51 : x
  2. Step 2: Convert to fraction form
    8,819.99/12,167.37 = 5,282.51/x
  3. Step 3: Cross multiply
    8,819.99x = 12,167.37 × 5,282.51
  4. Step 4: Simplify right side
    8,819.99x = 64,274,253.70
  5. Step 5: Solve for x
    x = 64,274,253.70/8,819.99
  6. Step 6: Final answer
    x = 7,287.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.