Home / 18,981.47-26,192.49-11,025.38

Finding the Fourth Proportional to 18,981.47, 26,192.49 and 11,025.38

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Solution

The fourth proportional to 18,981.47, 26,192.49 and 11,025.38 is: 15,213.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981.47 : 26,192.49 = 11,025.38 : x
  2. Step 2: Convert to fraction form
    18,981.47/26,192.49 = 11,025.38/x
  3. Step 3: Cross multiply
    18,981.47x = 26,192.49 × 11,025.38
  4. Step 4: Simplify right side
    18,981.47x = 288,782,155.40
  5. Step 5: Solve for x
    x = 288,782,155.40/18,981.47
  6. Step 6: Final answer
    x = 15,213.90

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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.