Home / 15,355.87-23,015.75-8,786.59

Finding the Fourth Proportional to 15,355.87, 23,015.75 and 8,786.59

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Solution

The fourth proportional to 15,355.87, 23,015.75 and 8,786.59 is: 13,169.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,355.87 : 23,015.75 = 8,786.59 : x
  2. Step 2: Convert to fraction form
    15,355.87/23,015.75 = 8,786.59/x
  3. Step 3: Cross multiply
    15,355.87x = 23,015.75 × 8,786.59
  4. Step 4: Simplify right side
    15,355.87x = 202,229,914.86
  5. Step 5: Solve for x
    x = 202,229,914.86/15,355.87
  6. Step 6: Final answer
    x = 13,169.55

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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.