Home / 13,339.96-18,408.22-7,371.16

Finding the Fourth Proportional to 13,339.96, 18,408.22 and 7,371.16

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Solution

The fourth proportional to 13,339.96, 18,408.22 and 7,371.16 is: 10,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.96 : 18,408.22 = 7,371.16 : x
  2. Step 2: Convert to fraction form
    13,339.96/18,408.22 = 7,371.16/x
  3. Step 3: Cross multiply
    13,339.96x = 18,408.22 × 7,371.16
  4. Step 4: Simplify right side
    13,339.96x = 135,689,888.61
  5. Step 5: Solve for x
    x = 135,689,888.61/13,339.96
  6. Step 6: Final answer
    x = 10,171.69

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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.