Home / 12,243.48-16,896.77-6,938.79

Finding the Fourth Proportional to 12,243.48, 16,896.77 and 6,938.79

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Solution

The fourth proportional to 12,243.48, 16,896.77 and 6,938.79 is: 9,575.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.48 : 16,896.77 = 6,938.79 : x
  2. Step 2: Convert to fraction form
    12,243.48/16,896.77 = 6,938.79/x
  3. Step 3: Cross multiply
    12,243.48x = 16,896.77 × 6,938.79
  4. Step 4: Simplify right side
    12,243.48x = 117,243,138.71
  5. Step 5: Solve for x
    x = 117,243,138.71/12,243.48
  6. Step 6: Final answer
    x = 9,575.97

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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.