Home / 11,683.62-16,123.29-6,378.66

Finding the Fourth Proportional to 11,683.62, 16,123.29 and 6,378.66

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Solution

The fourth proportional to 11,683.62, 16,123.29 and 6,378.66 is: 8,802.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.62 : 16,123.29 = 6,378.66 : x
  2. Step 2: Convert to fraction form
    11,683.62/16,123.29 = 6,378.66/x
  3. Step 3: Cross multiply
    11,683.62x = 16,123.29 × 6,378.66
  4. Step 4: Simplify right side
    11,683.62x = 102,844,984.99
  5. Step 5: Solve for x
    x = 102,844,984.99/11,683.62
  6. Step 6: Final answer
    x = 8,802.49

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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.