Home / 19,249.80-28,853.10-9,886.20

Finding the Fourth Proportional to 19,249.80, 28,853.10 and 9,886.20

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Solution

The fourth proportional to 19,249.80, 28,853.10 and 9,886.20 is: 14,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,249.80 : 28,853.10 = 9,886.20 : x
  2. Step 2: Convert to fraction form
    19,249.80/28,853.10 = 9,886.20/x
  3. Step 3: Cross multiply
    19,249.80x = 28,853.10 × 9,886.20
  4. Step 4: Simplify right side
    19,249.80x = 285,247,517.22
  5. Step 5: Solve for x
    x = 285,247,517.22/19,249.80
  6. Step 6: Final answer
    x = 14,818.21

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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.