Home / 14,288.18-21,440.37-7,714.22

Finding the Fourth Proportional to 14,288.18, 21,440.37 and 7,714.22

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Solution

The fourth proportional to 14,288.18, 21,440.37 and 7,714.22 is: 11,575.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.18 : 21,440.37 = 7,714.22 : x
  2. Step 2: Convert to fraction form
    14,288.18/21,440.37 = 7,714.22/x
  3. Step 3: Cross multiply
    14,288.18x = 21,440.37 × 7,714.22
  4. Step 4: Simplify right side
    14,288.18x = 165,395,813.59
  5. Step 5: Solve for x
    x = 165,395,813.59/14,288.18
  6. Step 6: Final answer
    x = 11,575.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.