Home / 13,339.04-18,408.09-7,370.70

Finding the Fourth Proportional to 13,339.04, 18,408.09 and 7,370.70

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Solution

The fourth proportional to 13,339.04, 18,408.09 and 7,370.70 is: 10,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.04 : 18,408.09 = 7,370.70 : x
  2. Step 2: Convert to fraction form
    13,339.04/18,408.09 = 7,370.70/x
  3. Step 3: Cross multiply
    13,339.04x = 18,408.09 × 7,370.70
  4. Step 4: Simplify right side
    13,339.04x = 135,680,508.96
  5. Step 5: Solve for x
    x = 135,680,508.96/13,339.04
  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.