Home / 11,705.66-16,154.41-6,400.42

Finding the Fourth Proportional to 11,705.66, 16,154.41 and 6,400.42

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Solution

The fourth proportional to 11,705.66, 16,154.41 and 6,400.42 is: 8,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,705.66 : 16,154.41 = 6,400.42 : x
  2. Step 2: Convert to fraction form
    11,705.66/16,154.41 = 6,400.42/x
  3. Step 3: Cross multiply
    11,705.66x = 16,154.41 × 6,400.42
  4. Step 4: Simplify right side
    11,705.66x = 103,395,008.85
  5. Step 5: Solve for x
    x = 103,395,008.85/11,705.66
  6. Step 6: Final answer
    x = 8,832.91

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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.