Home / 13,339.50-18,408.66-7,371.02

Finding the Fourth Proportional to 13,339.50, 18,408.66 and 7,371.02

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Solution

The fourth proportional to 13,339.50, 18,408.66 and 7,371.02 is: 10,172.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.50 : 18,408.66 = 7,371.02 : x
  2. Step 2: Convert to fraction form
    13,339.50/18,408.66 = 7,371.02/x
  3. Step 3: Cross multiply
    13,339.50x = 18,408.66 × 7,371.02
  4. Step 4: Simplify right side
    13,339.50x = 135,690,601.03
  5. Step 5: Solve for x
    x = 135,690,601.03/13,339.50
  6. Step 6: Final answer
    x = 10,172.09

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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.