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Finding the Fourth Proportional to 16,683.69, 25,013.79 and 8,357.79

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Solution

The fourth proportional to 16,683.69, 25,013.79 and 8,357.79 is: 12,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,683.69 : 25,013.79 = 8,357.79 : x
  2. Step 2: Convert to fraction form
    16,683.69/25,013.79 = 8,357.79/x
  3. Step 3: Cross multiply
    16,683.69x = 25,013.79 × 8,357.79
  4. Step 4: Simplify right side
    16,683.69x = 209,060,003.92
  5. Step 5: Solve for x
    x = 209,060,003.92/16,683.69
  6. Step 6: Final answer
    x = 12,530.80

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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.