Home / 15,194.13-20,967.84-8,479.68

Finding the Fourth Proportional to 15,194.13, 20,967.84 and 8,479.68

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Solution

The fourth proportional to 15,194.13, 20,967.84 and 8,479.68 is: 11,701.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,194.13 : 20,967.84 = 8,479.68 : x
  2. Step 2: Convert to fraction form
    15,194.13/20,967.84 = 8,479.68/x
  3. Step 3: Cross multiply
    15,194.13x = 20,967.84 × 8,479.68
  4. Step 4: Simplify right side
    15,194.13x = 177,800,573.49
  5. Step 5: Solve for x
    x = 177,800,573.49/15,194.13
  6. Step 6: Final answer
    x = 11,701.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.