Home / 18,874.32-28,290.12-9,499.44

Finding the Fourth Proportional to 18,874.32, 28,290.12 and 9,499.44

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Solution

The fourth proportional to 18,874.32, 28,290.12 and 9,499.44 is: 14,238.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.32 : 28,290.12 = 9,499.44 : x
  2. Step 2: Convert to fraction form
    18,874.32/28,290.12 = 9,499.44/x
  3. Step 3: Cross multiply
    18,874.32x = 28,290.12 × 9,499.44
  4. Step 4: Simplify right side
    18,874.32x = 268,740,297.53
  5. Step 5: Solve for x
    x = 268,740,297.53/18,874.32
  6. Step 6: Final answer
    x = 14,238.41

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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.