Home / 13,538.30-20,301.64-4,654.53

Finding the Fourth Proportional to 13,538.30, 20,301.64 and 4,654.53

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Solution

The fourth proportional to 13,538.30, 20,301.64 and 4,654.53 is: 6,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.30 : 20,301.64 = 4,654.53 : x
  2. Step 2: Convert to fraction form
    13,538.30/20,301.64 = 4,654.53/x
  3. Step 3: Cross multiply
    13,538.30x = 20,301.64 × 4,654.53
  4. Step 4: Simplify right side
    13,538.30x = 94,494,592.43
  5. Step 5: Solve for x
    x = 94,494,592.43/13,538.30
  6. Step 6: Final answer
    x = 6,979.80

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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.