Home / 13,622.54-18,809.61-10,981.74

Finding the Fourth Proportional to 13,622.54, 18,809.61 and 10,981.74

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Solution

The fourth proportional to 13,622.54, 18,809.61 and 10,981.74 is: 15,163.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.54 : 18,809.61 = 10,981.74 : x
  2. Step 2: Convert to fraction form
    13,622.54/18,809.61 = 10,981.74/x
  3. Step 3: Cross multiply
    13,622.54x = 18,809.61 × 10,981.74
  4. Step 4: Simplify right side
    13,622.54x = 206,562,246.52
  5. Step 5: Solve for x
    x = 206,562,246.52/13,622.54
  6. Step 6: Final answer
    x = 15,163.27

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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.