Home / 12,249.36-18,335.16-8,776.08

Finding the Fourth Proportional to 12,249.36, 18,335.16 and 8,776.08

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Solution

The fourth proportional to 12,249.36, 18,335.16 and 8,776.08 is: 13,136.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.36 : 18,335.16 = 8,776.08 : x
  2. Step 2: Convert to fraction form
    12,249.36/18,335.16 = 8,776.08/x
  3. Step 3: Cross multiply
    12,249.36x = 18,335.16 × 8,776.08
  4. Step 4: Simplify right side
    12,249.36x = 160,910,830.97
  5. Step 5: Solve for x
    x = 160,910,830.97/12,249.36
  6. Step 6: Final answer
    x = 13,136.26

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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.