Home / 11,683.68-16,123.14-6,378.42

Finding the Fourth Proportional to 11,683.68, 16,123.14 and 6,378.42

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Solution

The fourth proportional to 11,683.68, 16,123.14 and 6,378.42 is: 8,802.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.68 : 16,123.14 = 6,378.42 : x
  2. Step 2: Convert to fraction form
    11,683.68/16,123.14 = 6,378.42/x
  3. Step 3: Cross multiply
    11,683.68x = 16,123.14 × 6,378.42
  4. Step 4: Simplify right side
    11,683.68x = 102,840,158.64
  5. Step 5: Solve for x
    x = 102,840,158.64/11,683.68
  6. Step 6: Final answer
    x = 8,802.03

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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.