Home / 8,772.80-13,159.26-2,199.02

Finding the Fourth Proportional to 8,772.80, 13,159.26 and 2,199.02

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Solution

The fourth proportional to 8,772.80, 13,159.26 and 2,199.02 is: 3,298.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.80 : 13,159.26 = 2,199.02 : x
  2. Step 2: Convert to fraction form
    8,772.80/13,159.26 = 2,199.02/x
  3. Step 3: Cross multiply
    8,772.80x = 13,159.26 × 2,199.02
  4. Step 4: Simplify right side
    8,772.80x = 28,937,410.13
  5. Step 5: Solve for x
    x = 28,937,410.13/8,772.80
  6. Step 6: Final answer
    x = 3,298.54

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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.