Home / 11,683.45-16,124.10-6,649.21

Finding the Fourth Proportional to 11,683.45, 16,124.10 and 6,649.21

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Solution

The fourth proportional to 11,683.45, 16,124.10 and 6,649.21 is: 9,176.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,683.45 : 16,124.10 = 6,649.21 : x
  2. Step 2: Convert to fraction form
    11,683.45/16,124.10 = 6,649.21/x
  3. Step 3: Cross multiply
    11,683.45x = 16,124.10 × 6,649.21
  4. Step 4: Simplify right side
    11,683.45x = 107,212,526.96
  5. Step 5: Solve for x
    x = 107,212,526.96/11,683.45
  6. Step 6: Final answer
    x = 9,176.44

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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.