Home / 15,941.70-21,999.47-8,868.12

Finding the Fourth Proportional to 15,941.70, 21,999.47 and 8,868.12

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Solution

The fourth proportional to 15,941.70, 21,999.47 and 8,868.12 is: 12,237.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.70 : 21,999.47 = 8,868.12 : x
  2. Step 2: Convert to fraction form
    15,941.70/21,999.47 = 8,868.12/x
  3. Step 3: Cross multiply
    15,941.70x = 21,999.47 × 8,868.12
  4. Step 4: Simplify right side
    15,941.70x = 195,093,939.90
  5. Step 5: Solve for x
    x = 195,093,939.90/15,941.70
  6. Step 6: Final answer
    x = 12,237.96

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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.