Home / 12,132.99-18,197.46-3,368.79

Finding the Fourth Proportional to 12,132.99, 18,197.46 and 3,368.79

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Solution

The fourth proportional to 12,132.99, 18,197.46 and 3,368.79 is: 5,052.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.99 : 18,197.46 = 3,368.79 : x
  2. Step 2: Convert to fraction form
    12,132.99/18,197.46 = 3,368.79/x
  3. Step 3: Cross multiply
    12,132.99x = 18,197.46 × 3,368.79
  4. Step 4: Simplify right side
    12,132.99x = 61,303,421.27
  5. Step 5: Solve for x
    x = 61,303,421.27/12,132.99
  6. Step 6: Final answer
    x = 5,052.62

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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.