Home / 8,989.13-13,477.86-3,722.72

Finding the Fourth Proportional to 8,989.13, 13,477.86 and 3,722.72

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Solution

The fourth proportional to 8,989.13, 13,477.86 and 3,722.72 is: 5,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.13 : 13,477.86 = 3,722.72 : x
  2. Step 2: Convert to fraction form
    8,989.13/13,477.86 = 3,722.72/x
  3. Step 3: Cross multiply
    8,989.13x = 13,477.86 × 3,722.72
  4. Step 4: Simplify right side
    8,989.13x = 50,174,231.59
  5. Step 5: Solve for x
    x = 50,174,231.59/8,989.13
  6. Step 6: Final answer
    x = 5,581.65

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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.