Home / 8,859.87-13,291.02-2,620.37

Finding the Fourth Proportional to 8,859.87, 13,291.02 and 2,620.37

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Solution

The fourth proportional to 8,859.87, 13,291.02 and 2,620.37 is: 3,930.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.87 : 13,291.02 = 2,620.37 : x
  2. Step 2: Convert to fraction form
    8,859.87/13,291.02 = 2,620.37/x
  3. Step 3: Cross multiply
    8,859.87x = 13,291.02 × 2,620.37
  4. Step 4: Simplify right side
    8,859.87x = 34,827,423.30
  5. Step 5: Solve for x
    x = 34,827,423.30/8,859.87
  6. Step 6: Final answer
    x = 3,930.92

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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.