Home / 11,319.39-16,982.32-5,479.29

Finding the Fourth Proportional to 11,319.39, 16,982.32 and 5,479.29

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Solution

The fourth proportional to 11,319.39, 16,982.32 and 5,479.29 is: 8,220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.39 : 16,982.32 = 5,479.29 : x
  2. Step 2: Convert to fraction form
    11,319.39/16,982.32 = 5,479.29/x
  3. Step 3: Cross multiply
    11,319.39x = 16,982.32 × 5,479.29
  4. Step 4: Simplify right side
    11,319.39x = 93,050,943.84
  5. Step 5: Solve for x
    x = 93,050,943.84/11,319.39
  6. Step 6: Final answer
    x = 8,220.49

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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.