Home / 15,941.43-21,999.11-8,867.84

Finding the Fourth Proportional to 15,941.43, 21,999.11 and 8,867.84

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Solution

The fourth proportional to 15,941.43, 21,999.11 and 8,867.84 is: 12,237.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.43 : 21,999.11 = 8,867.84 : x
  2. Step 2: Convert to fraction form
    15,941.43/21,999.11 = 8,867.84/x
  3. Step 3: Cross multiply
    15,941.43x = 21,999.11 × 8,867.84
  4. Step 4: Simplify right side
    15,941.43x = 195,084,433.29
  5. Step 5: Solve for x
    x = 195,084,433.29/15,941.43
  6. Step 6: Final answer
    x = 12,237.57

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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.