Home / 13,199.12-18,214.61-7,230.42

Finding the Fourth Proportional to 13,199.12, 18,214.61 and 7,230.42

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Solution

The fourth proportional to 13,199.12, 18,214.61 and 7,230.42 is: 9,977.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.12 : 18,214.61 = 7,230.42 : x
  2. Step 2: Convert to fraction form
    13,199.12/18,214.61 = 7,230.42/x
  3. Step 3: Cross multiply
    13,199.12x = 18,214.61 × 7,230.42
  4. Step 4: Simplify right side
    13,199.12x = 131,699,244.28
  5. Step 5: Solve for x
    x = 131,699,244.28/13,199.12
  6. Step 6: Final answer
    x = 9,977.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.