Home / 18,898.39-28,339.40-5,747.73

Finding the Fourth Proportional to 18,898.39, 28,339.40 and 5,747.73

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Solution

The fourth proportional to 18,898.39, 28,339.40 and 5,747.73 is: 8,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.39 : 28,339.40 = 5,747.73 : x
  2. Step 2: Convert to fraction form
    18,898.39/28,339.40 = 5,747.73/x
  3. Step 3: Cross multiply
    18,898.39x = 28,339.40 × 5,747.73
  4. Step 4: Simplify right side
    18,898.39x = 162,887,095.33
  5. Step 5: Solve for x
    x = 162,887,095.33/18,898.39
  6. Step 6: Final answer
    x = 8,619.10

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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.