Home / 18,981.45-26,196.21-11,023.20

Finding the Fourth Proportional to 18,981.45, 26,196.21 and 11,023.20

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Solution

The fourth proportional to 18,981.45, 26,196.21 and 11,023.20 is: 15,213.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981.45 : 26,196.21 = 11,023.20 : x
  2. Step 2: Convert to fraction form
    18,981.45/26,196.21 = 11,023.20/x
  3. Step 3: Cross multiply
    18,981.45x = 26,196.21 × 11,023.20
  4. Step 4: Simplify right side
    18,981.45x = 288,766,062.07
  5. Step 5: Solve for x
    x = 288,766,062.07/18,981.45
  6. Step 6: Final answer
    x = 15,213.07

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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.