Home / 15,920.96-21,969.93-8,847.43

Finding the Fourth Proportional to 15,920.96, 21,969.93 and 8,847.43

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Solution

The fourth proportional to 15,920.96, 21,969.93 and 8,847.43 is: 12,208.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920.96 : 21,969.93 = 8,847.43 : x
  2. Step 2: Convert to fraction form
    15,920.96/21,969.93 = 8,847.43/x
  3. Step 3: Cross multiply
    15,920.96x = 21,969.93 × 8,847.43
  4. Step 4: Simplify right side
    15,920.96x = 194,377,396.03
  5. Step 5: Solve for x
    x = 194,377,396.03/15,920.96
  6. Step 6: Final answer
    x = 12,208.90

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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.