Home / 18,968.76-28,453.14-6,488.91

Finding the Fourth Proportional to 18,968.76, 28,453.14 and 6,488.91

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Solution

The fourth proportional to 18,968.76, 28,453.14 and 6,488.91 is: 9,733.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.76 : 28,453.14 = 6,488.91 : x
  2. Step 2: Convert to fraction form
    18,968.76/28,453.14 = 6,488.91/x
  3. Step 3: Cross multiply
    18,968.76x = 28,453.14 × 6,488.91
  4. Step 4: Simplify right side
    18,968.76x = 184,629,864.68
  5. Step 5: Solve for x
    x = 184,629,864.68/18,968.76
  6. Step 6: Final answer
    x = 9,733.37

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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.