Home / 18,846.48-28,279.44-7,761.36

Finding the Fourth Proportional to 18,846.48, 28,279.44 and 7,761.36

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Solution

The fourth proportional to 18,846.48, 28,279.44 and 7,761.36 is: 11,646.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,846.48 : 28,279.44 = 7,761.36 : x
  2. Step 2: Convert to fraction form
    18,846.48/28,279.44 = 7,761.36/x
  3. Step 3: Cross multiply
    18,846.48x = 28,279.44 × 7,761.36
  4. Step 4: Simplify right side
    18,846.48x = 219,486,914.44
  5. Step 5: Solve for x
    x = 219,486,914.44/18,846.48
  6. Step 6: Final answer
    x = 11,646.04

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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.