Home / 13,479.84-20,218.32-4,714.92

Finding the Fourth Proportional to 13,479.84, 20,218.32 and 4,714.92

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Solution

The fourth proportional to 13,479.84, 20,218.32 and 4,714.92 is: 7,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.84 : 20,218.32 = 4,714.92 : x
  2. Step 2: Convert to fraction form
    13,479.84/20,218.32 = 4,714.92/x
  3. Step 3: Cross multiply
    13,479.84x = 20,218.32 × 4,714.92
  4. Step 4: Simplify right side
    13,479.84x = 95,327,761.33
  5. Step 5: Solve for x
    x = 95,327,761.33/13,479.84
  6. Step 6: Final answer
    x = 7,071.88

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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.