Home / 18,285.89-27,429.77-5,806.88

Finding the Fourth Proportional to 18,285.89, 27,429.77 and 5,806.88

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Solution

The fourth proportional to 18,285.89, 27,429.77 and 5,806.88 is: 8,710.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.89 : 27,429.77 = 5,806.88 : x
  2. Step 2: Convert to fraction form
    18,285.89/27,429.77 = 5,806.88/x
  3. Step 3: Cross multiply
    18,285.89x = 27,429.77 × 5,806.88
  4. Step 4: Simplify right side
    18,285.89x = 159,281,465.91
  5. Step 5: Solve for x
    x = 159,281,465.91/18,285.89
  6. Step 6: Final answer
    x = 8,710.62

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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.