Home / 13,607.06-20,407.48-3,747.20

Finding the Fourth Proportional to 13,607.06, 20,407.48 and 3,747.20

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Solution

The fourth proportional to 13,607.06, 20,407.48 and 3,747.20 is: 5,619.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.06 : 20,407.48 = 3,747.20 : x
  2. Step 2: Convert to fraction form
    13,607.06/20,407.48 = 3,747.20/x
  3. Step 3: Cross multiply
    13,607.06x = 20,407.48 × 3,747.20
  4. Step 4: Simplify right side
    13,607.06x = 76,470,797.65
  5. Step 5: Solve for x
    x = 76,470,797.65/13,607.06
  6. Step 6: Final answer
    x = 5,619.94

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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.