Home / 13,314.24-19,970.88-4,080

Finding the Fourth Proportional to 13,314.24, 19,970.88 and 4,080

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Solution

The fourth proportional to 13,314.24, 19,970.88 and 4,080 is: 6,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.24 : 19,970.88 = 4,080 : x
  2. Step 2: Convert to fraction form
    13,314.24/19,970.88 = 4,080/x
  3. Step 3: Cross multiply
    13,314.24x = 19,970.88 × 4,080
  4. Step 4: Simplify right side
    13,314.24x = 81,481,190.40
  5. Step 5: Solve for x
    x = 81,481,190.40/13,314.24
  6. Step 6: Final answer
    x = 6,119.85

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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.