Home / 18,941.22-26,135.91-10,981.80

Finding the Fourth Proportional to 18,941.22, 26,135.91 and 10,981.80

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Solution

The fourth proportional to 18,941.22, 26,135.91 and 10,981.80 is: 15,153.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.22 : 26,135.91 = 10,981.80 : x
  2. Step 2: Convert to fraction form
    18,941.22/26,135.91 = 10,981.80/x
  3. Step 3: Cross multiply
    18,941.22x = 26,135.91 × 10,981.80
  4. Step 4: Simplify right side
    18,941.22x = 287,019,336.44
  5. Step 5: Solve for x
    x = 287,019,336.44/18,941.22
  6. Step 6: Final answer
    x = 15,153.16

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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.