Home / 12,479.34-18,718.77-3,714.33

Finding the Fourth Proportional to 12,479.34, 18,718.77 and 3,714.33

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Solution

The fourth proportional to 12,479.34, 18,718.77 and 3,714.33 is: 5,571.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479.34 : 18,718.77 = 3,714.33 : x
  2. Step 2: Convert to fraction form
    12,479.34/18,718.77 = 3,714.33/x
  3. Step 3: Cross multiply
    12,479.34x = 18,718.77 × 3,714.33
  4. Step 4: Simplify right side
    12,479.34x = 69,527,688.97
  5. Step 5: Solve for x
    x = 69,527,688.97/12,479.34
  6. Step 6: Final answer
    x = 5,571.42

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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.