Home / 18,717.54-28,080.35-8,714.85

Finding the Fourth Proportional to 18,717.54, 28,080.35 and 8,714.85

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Solution

The fourth proportional to 18,717.54, 28,080.35 and 8,714.85 is: 13,074.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717.54 : 28,080.35 = 8,714.85 : x
  2. Step 2: Convert to fraction form
    18,717.54/28,080.35 = 8,714.85/x
  3. Step 3: Cross multiply
    18,717.54x = 28,080.35 × 8,714.85
  4. Step 4: Simplify right side
    18,717.54x = 244,716,038.20
  5. Step 5: Solve for x
    x = 244,716,038.20/18,717.54
  6. Step 6: Final answer
    x = 13,074.16

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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.