Home / 18,806.83-28,212.98-5,660.23

Finding the Fourth Proportional to 18,806.83, 28,212.98 and 5,660.23

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Solution

The fourth proportional to 18,806.83, 28,212.98 and 5,660.23 is: 8,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.83 : 28,212.98 = 5,660.23 : x
  2. Step 2: Convert to fraction form
    18,806.83/28,212.98 = 5,660.23/x
  3. Step 3: Cross multiply
    18,806.83x = 28,212.98 × 5,660.23
  4. Step 4: Simplify right side
    18,806.83x = 159,691,957.61
  5. Step 5: Solve for x
    x = 159,691,957.61/18,806.83
  6. Step 6: Final answer
    x = 8,491.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.