Home / 19,869.59-27,408.62-12,404.63

Finding the Fourth Proportional to 19,869.59, 27,408.62 and 12,404.63

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Solution

The fourth proportional to 19,869.59, 27,408.62 and 12,404.63 is: 17,111.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.59 : 27,408.62 = 12,404.63 : x
  2. Step 2: Convert to fraction form
    19,869.59/27,408.62 = 12,404.63/x
  3. Step 3: Cross multiply
    19,869.59x = 27,408.62 × 12,404.63
  4. Step 4: Simplify right side
    19,869.59x = 339,993,590.84
  5. Step 5: Solve for x
    x = 339,993,590.84/19,869.59
  6. Step 6: Final answer
    x = 17,111.26

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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.