Home / 11,705.32-16,153.54-6,400.36

Finding the Fourth Proportional to 11,705.32, 16,153.54 and 6,400.36

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Solution

The fourth proportional to 11,705.32, 16,153.54 and 6,400.36 is: 8,832.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,705.32 : 16,153.54 = 6,400.36 : x
  2. Step 2: Convert to fraction form
    11,705.32/16,153.54 = 6,400.36/x
  3. Step 3: Cross multiply
    11,705.32x = 16,153.54 × 6,400.36
  4. Step 4: Simplify right side
    11,705.32x = 103,388,471.27
  5. Step 5: Solve for x
    x = 103,388,471.27/11,705.32
  6. Step 6: Final answer
    x = 8,832.61

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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.