Home / 8,972.87-13,458.36-2,399.72

Finding the Fourth Proportional to 8,972.87, 13,458.36 and 2,399.72

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Solution

The fourth proportional to 8,972.87, 13,458.36 and 2,399.72 is: 3,599.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.87 : 13,458.36 = 2,399.72 : x
  2. Step 2: Convert to fraction form
    8,972.87/13,458.36 = 2,399.72/x
  3. Step 3: Cross multiply
    8,972.87x = 13,458.36 × 2,399.72
  4. Step 4: Simplify right side
    8,972.87x = 32,296,295.66
  5. Step 5: Solve for x
    x = 32,296,295.66/8,972.87
  6. Step 6: Final answer
    x = 3,599.33

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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.