Home / 18,288.48-27,429.90-5,806.86

Finding the Fourth Proportional to 18,288.48, 27,429.90 and 5,806.86

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Solution

The fourth proportional to 18,288.48, 27,429.90 and 5,806.86 is: 8,709.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288.48 : 27,429.90 = 5,806.86 : x
  2. Step 2: Convert to fraction form
    18,288.48/27,429.90 = 5,806.86/x
  3. Step 3: Cross multiply
    18,288.48x = 27,429.90 × 5,806.86
  4. Step 4: Simplify right side
    18,288.48x = 159,281,589.11
  5. Step 5: Solve for x
    x = 159,281,589.11/18,288.48
  6. Step 6: Final answer
    x = 8,709.39

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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.