Home / 18,865.14-28,297.77-6,385.29

Finding the Fourth Proportional to 18,865.14, 28,297.77 and 6,385.29

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Solution

The fourth proportional to 18,865.14, 28,297.77 and 6,385.29 is: 9,577.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.14 : 28,297.77 = 6,385.29 : x
  2. Step 2: Convert to fraction form
    18,865.14/28,297.77 = 6,385.29/x
  3. Step 3: Cross multiply
    18,865.14x = 28,297.77 × 6,385.29
  4. Step 4: Simplify right side
    18,865.14x = 180,689,467.80
  5. Step 5: Solve for x
    x = 180,689,467.80/18,865.14
  6. Step 6: Final answer
    x = 9,577.96

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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.