Home / 12,249.32-16,904.79-6,872.21

Finding the Fourth Proportional to 12,249.32, 16,904.79 and 6,872.21

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Solution

The fourth proportional to 12,249.32, 16,904.79 and 6,872.21 is: 9,484.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.32 : 16,904.79 = 6,872.21 : x
  2. Step 2: Convert to fraction form
    12,249.32/16,904.79 = 6,872.21/x
  3. Step 3: Cross multiply
    12,249.32x = 16,904.79 × 6,872.21
  4. Step 4: Simplify right side
    12,249.32x = 116,173,266.89
  5. Step 5: Solve for x
    x = 116,173,266.89/12,249.32
  6. Step 6: Final answer
    x = 9,484.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.