Home / 26,509.92-39,763.62-7,789.20

Finding the Fourth Proportional to 26,509.92, 39,763.62 and 7,789.20

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Solution

The fourth proportional to 26,509.92, 39,763.62 and 7,789.20 is: 11,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,509.92 : 39,763.62 = 7,789.20 : x
  2. Step 2: Convert to fraction form
    26,509.92/39,763.62 = 7,789.20/x
  3. Step 3: Cross multiply
    26,509.92x = 39,763.62 × 7,789.20
  4. Step 4: Simplify right side
    26,509.92x = 309,726,788.90
  5. Step 5: Solve for x
    x = 309,726,788.90/26,509.92
  6. Step 6: Final answer
    x = 11,683.43

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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.