Home / 7,520.36-11,282.97-3,139.07

Finding the Fourth Proportional to 7,520.36, 11,282.97 and 3,139.07

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Solution

The fourth proportional to 7,520.36, 11,282.97 and 3,139.07 is: 4,709.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.36 : 11,282.97 = 3,139.07 : x
  2. Step 2: Convert to fraction form
    7,520.36/11,282.97 = 3,139.07/x
  3. Step 3: Cross multiply
    7,520.36x = 11,282.97 × 3,139.07
  4. Step 4: Simplify right side
    7,520.36x = 35,418,032.64
  5. Step 5: Solve for x
    x = 35,418,032.64/7,520.36
  6. Step 6: Final answer
    x = 4,709.62

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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.