Home / 18,714.64-28,065.87-6,231.31

Finding the Fourth Proportional to 18,714.64, 28,065.87 and 6,231.31

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Solution

The fourth proportional to 18,714.64, 28,065.87 and 6,231.31 is: 9,344.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.64 : 28,065.87 = 6,231.31 : x
  2. Step 2: Convert to fraction form
    18,714.64/28,065.87 = 6,231.31/x
  3. Step 3: Cross multiply
    18,714.64x = 28,065.87 × 6,231.31
  4. Step 4: Simplify right side
    18,714.64x = 174,887,136.39
  5. Step 5: Solve for x
    x = 174,887,136.39/18,714.64
  6. Step 6: Final answer
    x = 9,344.94

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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.