Home / 14,456.09-19,951.52-8,491.02

Finding the Fourth Proportional to 14,456.09, 19,951.52 and 8,491.02

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Solution

The fourth proportional to 14,456.09, 19,951.52 and 8,491.02 is: 11,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,456.09 : 19,951.52 = 8,491.02 : x
  2. Step 2: Convert to fraction form
    14,456.09/19,951.52 = 8,491.02/x
  3. Step 3: Cross multiply
    14,456.09x = 19,951.52 × 8,491.02
  4. Step 4: Simplify right side
    14,456.09x = 169,408,755.35
  5. Step 5: Solve for x
    x = 169,408,755.35/14,456.09
  6. Step 6: Final answer
    x = 11,718.85

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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.