Home / 13,807.13-20,679.54-6,396.02

Finding the Fourth Proportional to 13,807.13, 20,679.54 and 6,396.02

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Solution

The fourth proportional to 13,807.13, 20,679.54 and 6,396.02 is: 9,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.13 : 20,679.54 = 6,396.02 : x
  2. Step 2: Convert to fraction form
    13,807.13/20,679.54 = 6,396.02/x
  3. Step 3: Cross multiply
    13,807.13x = 20,679.54 × 6,396.02
  4. Step 4: Simplify right side
    13,807.13x = 132,266,719.45
  5. Step 5: Solve for x
    x = 132,266,719.45/13,807.13
  6. Step 6: Final answer
    x = 9,579.60

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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.