Home / 12,299.78-16,972.44-6,992.66

Finding the Fourth Proportional to 12,299.78, 16,972.44 and 6,992.66

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Solution

The fourth proportional to 12,299.78, 16,972.44 and 6,992.66 is: 9,649.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.78 : 16,972.44 = 6,992.66 : x
  2. Step 2: Convert to fraction form
    12,299.78/16,972.44 = 6,992.66/x
  3. Step 3: Cross multiply
    12,299.78x = 16,972.44 × 6,992.66
  4. Step 4: Simplify right side
    12,299.78x = 118,682,502.29
  5. Step 5: Solve for x
    x = 118,682,502.29/12,299.78
  6. Step 6: Final answer
    x = 9,649.16

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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.