Home / 13,377.08-18,460.12-7,408.73

Finding the Fourth Proportional to 13,377.08, 18,460.12 and 7,408.73

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Solution

The fourth proportional to 13,377.08, 18,460.12 and 7,408.73 is: 10,223.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.08 : 18,460.12 = 7,408.73 : x
  2. Step 2: Convert to fraction form
    13,377.08/18,460.12 = 7,408.73/x
  3. Step 3: Cross multiply
    13,377.08x = 18,460.12 × 7,408.73
  4. Step 4: Simplify right side
    13,377.08x = 136,766,044.85
  5. Step 5: Solve for x
    x = 136,766,044.85/13,377.08
  6. Step 6: Final answer
    x = 10,223.91

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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.