Home / 13,339.34-18,408.02-7,370.85

Finding the Fourth Proportional to 13,339.34, 18,408.02 and 7,370.85

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Solution

The fourth proportional to 13,339.34, 18,408.02 and 7,370.85 is: 10,171.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.34 : 18,408.02 = 7,370.85 : x
  2. Step 2: Convert to fraction form
    13,339.34/18,408.02 = 7,370.85/x
  3. Step 3: Cross multiply
    13,339.34x = 18,408.02 × 7,370.85
  4. Step 4: Simplify right side
    13,339.34x = 135,682,717.36
  5. Step 5: Solve for x
    x = 135,682,717.36/13,339.34
  6. Step 6: Final answer
    x = 10,171.63

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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.