Home / 9,012.90-13,519.34-2,439.60

Finding the Fourth Proportional to 9,012.90, 13,519.34 and 2,439.60

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Solution

The fourth proportional to 9,012.90, 13,519.34 and 2,439.60 is: 3,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,012.90 : 13,519.34 = 2,439.60 : x
  2. Step 2: Convert to fraction form
    9,012.90/13,519.34 = 2,439.60/x
  3. Step 3: Cross multiply
    9,012.90x = 13,519.34 × 2,439.60
  4. Step 4: Simplify right side
    9,012.90x = 32,981,804.16
  5. Step 5: Solve for x
    x = 32,981,804.16/9,012.90
  6. Step 6: Final answer
    x = 3,659.40

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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.