Home / 8,835.12-13,251.24-2,991.60

Finding the Fourth Proportional to 8,835.12, 13,251.24 and 2,991.60

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Solution

The fourth proportional to 8,835.12, 13,251.24 and 2,991.60 is: 4,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835.12 : 13,251.24 = 2,991.60 : x
  2. Step 2: Convert to fraction form
    8,835.12/13,251.24 = 2,991.60/x
  3. Step 3: Cross multiply
    8,835.12x = 13,251.24 × 2,991.60
  4. Step 4: Simplify right side
    8,835.12x = 39,642,409.58
  5. Step 5: Solve for x
    x = 39,642,409.58/8,835.12
  6. Step 6: Final answer
    x = 4,486.91

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1.5x scale

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.