Home / 11,378.98-17,070.21-3,479.66

Finding the Fourth Proportional to 11,378.98, 17,070.21 and 3,479.66

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Solution

The fourth proportional to 11,378.98, 17,070.21 and 3,479.66 is: 5,220.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.98 : 17,070.21 = 3,479.66 : x
  2. Step 2: Convert to fraction form
    11,378.98/17,070.21 = 3,479.66/x
  3. Step 3: Cross multiply
    11,378.98x = 17,070.21 × 3,479.66
  4. Step 4: Simplify right side
    11,378.98x = 59,398,505.59
  5. Step 5: Solve for x
    x = 59,398,505.59/11,378.98
  6. Step 6: Final answer
    x = 5,220.02

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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.