Home / 18,538.89-27,808.10-4,499.03

Finding the Fourth Proportional to 18,538.89, 27,808.10 and 4,499.03

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Solution

The fourth proportional to 18,538.89, 27,808.10 and 4,499.03 is: 6,748.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.89 : 27,808.10 = 4,499.03 : x
  2. Step 2: Convert to fraction form
    18,538.89/27,808.10 = 4,499.03/x
  3. Step 3: Cross multiply
    18,538.89x = 27,808.10 × 4,499.03
  4. Step 4: Simplify right side
    18,538.89x = 125,109,476.14
  5. Step 5: Solve for x
    x = 125,109,476.14/18,538.89
  6. Step 6: Final answer
    x = 6,748.49

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1.5x scale

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.