Home / 18,499.04-27,690.20-13,217.03

Finding the Fourth Proportional to 18,499.04, 27,690.20 and 13,217.03

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Solution

The fourth proportional to 18,499.04, 27,690.20 and 13,217.03 is: 19,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,499.04 : 27,690.20 = 13,217.03 : x
  2. Step 2: Convert to fraction form
    18,499.04/27,690.20 = 13,217.03/x
  3. Step 3: Cross multiply
    18,499.04x = 27,690.20 × 13,217.03
  4. Step 4: Simplify right side
    18,499.04x = 365,982,204.11
  5. Step 5: Solve for x
    x = 365,982,204.11/18,499.04
  6. Step 6: Final answer
    x = 19,783.85

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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.