Home / 13,786.24-20,688.55-8,859.41

Finding the Fourth Proportional to 13,786.24, 20,688.55 and 8,859.41

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Solution

The fourth proportional to 13,786.24, 20,688.55 and 8,859.41 is: 13,295.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.24 : 20,688.55 = 8,859.41 : x
  2. Step 2: Convert to fraction form
    13,786.24/20,688.55 = 8,859.41/x
  3. Step 3: Cross multiply
    13,786.24x = 20,688.55 × 8,859.41
  4. Step 4: Simplify right side
    13,786.24x = 183,288,346.76
  5. Step 5: Solve for x
    x = 183,288,346.76/13,786.24
  6. Step 6: Final answer
    x = 13,295.02

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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.