Home / 13,720.84-20,586.67-5,825.06

Finding the Fourth Proportional to 13,720.84, 20,586.67 and 5,825.06

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Solution

The fourth proportional to 13,720.84, 20,586.67 and 5,825.06 is: 8,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.84 : 20,586.67 = 5,825.06 : x
  2. Step 2: Convert to fraction form
    13,720.84/20,586.67 = 5,825.06/x
  3. Step 3: Cross multiply
    13,720.84x = 20,586.67 × 5,825.06
  4. Step 4: Simplify right side
    13,720.84x = 119,918,470.45
  5. Step 5: Solve for x
    x = 119,918,470.45/13,720.84
  6. Step 6: Final answer
    x = 8,739.88

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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.