Home / 15,993.29-22,071.20-8,920.17

Finding the Fourth Proportional to 15,993.29, 22,071.20 and 8,920.17

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Solution

The fourth proportional to 15,993.29, 22,071.20 and 8,920.17 is: 12,310.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,993.29 : 22,071.20 = 8,920.17 : x
  2. Step 2: Convert to fraction form
    15,993.29/22,071.20 = 8,920.17/x
  3. Step 3: Cross multiply
    15,993.29x = 22,071.20 × 8,920.17
  4. Step 4: Simplify right side
    15,993.29x = 196,878,811.50
  5. Step 5: Solve for x
    x = 196,878,811.50/15,993.29
  6. Step 6: Final answer
    x = 12,310.09

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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.