Home / 18,714.24-28,070.35-11,316.71

Finding the Fourth Proportional to 18,714.24, 28,070.35 and 11,316.71

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Solution

The fourth proportional to 18,714.24, 28,070.35 and 11,316.71 is: 16,974.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.24 : 28,070.35 = 11,316.71 : x
  2. Step 2: Convert to fraction form
    18,714.24/28,070.35 = 11,316.71/x
  3. Step 3: Cross multiply
    18,714.24x = 28,070.35 × 11,316.71
  4. Step 4: Simplify right side
    18,714.24x = 317,664,052.43
  5. Step 5: Solve for x
    x = 317,664,052.43/18,714.24
  6. Step 6: Final answer
    x = 16,974.46

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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.