Home / 11,439.50-17,083.11-11,315.79

Finding the Fourth Proportional to 11,439.50, 17,083.11 and 11,315.79

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Solution

The fourth proportional to 11,439.50, 17,083.11 and 11,315.79 is: 16,898.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.50 : 17,083.11 = 11,315.79 : x
  2. Step 2: Convert to fraction form
    11,439.50/17,083.11 = 11,315.79/x
  3. Step 3: Cross multiply
    11,439.50x = 17,083.11 × 11,315.79
  4. Step 4: Simplify right side
    11,439.50x = 193,308,927.74
  5. Step 5: Solve for x
    x = 193,308,927.74/11,439.50
  6. Step 6: Final answer
    x = 16,898.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.