Home / 18,714.38-28,065.51-6,231.06

Finding the Fourth Proportional to 18,714.38, 28,065.51 and 6,231.06

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Solution

The fourth proportional to 18,714.38, 28,065.51 and 6,231.06 is: 9,344.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.38 : 28,065.51 = 6,231.06 : x
  2. Step 2: Convert to fraction form
    18,714.38/28,065.51 = 6,231.06/x
  3. Step 3: Cross multiply
    18,714.38x = 28,065.51 × 6,231.06
  4. Step 4: Simplify right side
    18,714.38x = 174,877,876.74
  5. Step 5: Solve for x
    x = 174,877,876.74/18,714.38
  6. Step 6: Final answer
    x = 9,344.57

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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.