Home / 18,941.25-26,134.38-12,225.45

Finding the Fourth Proportional to 18,941.25, 26,134.38 and 12,225.45

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Solution

The fourth proportional to 18,941.25, 26,134.38 and 12,225.45 is: 16,868.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.25 : 26,134.38 = 12,225.45 : x
  2. Step 2: Convert to fraction form
    18,941.25/26,134.38 = 12,225.45/x
  3. Step 3: Cross multiply
    18,941.25x = 26,134.38 × 12,225.45
  4. Step 4: Simplify right side
    18,941.25x = 319,504,555.97
  5. Step 5: Solve for x
    x = 319,504,555.97/18,941.25
  6. Step 6: Final answer
    x = 16,868.19

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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.