Home / 19,869.35-27,408.30-12,404.39

Finding the Fourth Proportional to 19,869.35, 27,408.30 and 12,404.39

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Solution

The fourth proportional to 19,869.35, 27,408.30 and 12,404.39 is: 17,110.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.35 : 27,408.30 = 12,404.39 : x
  2. Step 2: Convert to fraction form
    19,869.35/27,408.30 = 12,404.39/x
  3. Step 3: Cross multiply
    19,869.35x = 27,408.30 × 12,404.39
  4. Step 4: Simplify right side
    19,869.35x = 339,983,247.94
  5. Step 5: Solve for x
    x = 339,983,247.94/19,869.35
  6. Step 6: Final answer
    x = 17,110.94

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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.