Home / 14,418.50-19,879.51-12,031.91

Finding the Fourth Proportional to 14,418.50, 19,879.51 and 12,031.91

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Solution

The fourth proportional to 14,418.50, 19,879.51 and 12,031.91 is: 16,588.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.50 : 19,879.51 = 12,031.91 : x
  2. Step 2: Convert to fraction form
    14,418.50/19,879.51 = 12,031.91/x
  3. Step 3: Cross multiply
    14,418.50x = 19,879.51 × 12,031.91
  4. Step 4: Simplify right side
    14,418.50x = 239,188,315.61
  5. Step 5: Solve for x
    x = 239,188,315.61/14,418.50
  6. Step 6: Final answer
    x = 16,588.99

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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.