Home / 26,585.76-39,871.36-7,860.20

Finding the Fourth Proportional to 26,585.76, 39,871.36 and 7,860.20

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Solution

The fourth proportional to 26,585.76, 39,871.36 and 7,860.20 is: 11,788.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,585.76 : 39,871.36 = 7,860.20 : x
  2. Step 2: Convert to fraction form
    26,585.76/39,871.36 = 7,860.20/x
  3. Step 3: Cross multiply
    26,585.76x = 39,871.36 × 7,860.20
  4. Step 4: Simplify right side
    26,585.76x = 313,396,863.87
  5. Step 5: Solve for x
    x = 313,396,863.87/26,585.76
  6. Step 6: Final answer
    x = 11,788.15

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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.