Home / 14,388.29-19,855.87-8,339.70

Finding the Fourth Proportional to 14,388.29, 19,855.87 and 8,339.70

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Solution

The fourth proportional to 14,388.29, 19,855.87 and 8,339.70 is: 11,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.29 : 19,855.87 = 8,339.70 : x
  2. Step 2: Convert to fraction form
    14,388.29/19,855.87 = 8,339.70/x
  3. Step 3: Cross multiply
    14,388.29x = 19,855.87 × 8,339.70
  4. Step 4: Simplify right side
    14,388.29x = 165,591,987.87
  5. Step 5: Solve for x
    x = 165,591,987.87/14,388.29
  6. Step 6: Final answer
    x = 11,508.80

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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.