Home / 8,679.24-13,017.44-2,439.68

Finding the Fourth Proportional to 8,679.24, 13,017.44 and 2,439.68

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Solution

The fourth proportional to 8,679.24, 13,017.44 and 2,439.68 is: 3,659.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.24 : 13,017.44 = 2,439.68 : x
  2. Step 2: Convert to fraction form
    8,679.24/13,017.44 = 2,439.68/x
  3. Step 3: Cross multiply
    8,679.24x = 13,017.44 × 2,439.68
  4. Step 4: Simplify right side
    8,679.24x = 31,758,388.02
  5. Step 5: Solve for x
    x = 31,758,388.02/8,679.24
  6. Step 6: Final answer
    x = 3,659.12

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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.