Home / 13,514.05-18,649.06-8,408.35

Finding the Fourth Proportional to 13,514.05, 18,649.06 and 8,408.35

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Solution

The fourth proportional to 13,514.05, 18,649.06 and 8,408.35 is: 11,603.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,514.05 : 18,649.06 = 8,408.35 : x
  2. Step 2: Convert to fraction form
    13,514.05/18,649.06 = 8,408.35/x
  3. Step 3: Cross multiply
    13,514.05x = 18,649.06 × 8,408.35
  4. Step 4: Simplify right side
    13,514.05x = 156,807,823.65
  5. Step 5: Solve for x
    x = 156,807,823.65/13,514.05
  6. Step 6: Final answer
    x = 11,603.32

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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.