Home / 13,822.84-20,742.29-5,817.02

Finding the Fourth Proportional to 13,822.84, 20,742.29 and 5,817.02

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Solution

The fourth proportional to 13,822.84, 20,742.29 and 5,817.02 is: 8,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.84 : 20,742.29 = 5,817.02 : x
  2. Step 2: Convert to fraction form
    13,822.84/20,742.29 = 5,817.02/x
  3. Step 3: Cross multiply
    13,822.84x = 20,742.29 × 5,817.02
  4. Step 4: Simplify right side
    13,822.84x = 120,658,315.78
  5. Step 5: Solve for x
    x = 120,658,315.78/13,822.84
  6. Step 6: Final answer
    x = 8,728.91

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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.