Home / 14,067.90-19,408.58-8,615.10

Finding the Fourth Proportional to 14,067.90, 19,408.58 and 8,615.10

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Solution

The fourth proportional to 14,067.90, 19,408.58 and 8,615.10 is: 11,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,067.90 : 19,408.58 = 8,615.10 : x
  2. Step 2: Convert to fraction form
    14,067.90/19,408.58 = 8,615.10/x
  3. Step 3: Cross multiply
    14,067.90x = 19,408.58 × 8,615.10
  4. Step 4: Simplify right side
    14,067.90x = 167,206,857.56
  5. Step 5: Solve for x
    x = 167,206,857.56/14,067.90
  6. Step 6: Final answer
    x = 11,885.70

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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.