Home / 11,711.32-16,161.92-6,406.08

Finding the Fourth Proportional to 11,711.32, 16,161.92 and 6,406.08

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Solution

The fourth proportional to 11,711.32, 16,161.92 and 6,406.08 is: 8,840.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.32 : 16,161.92 = 6,406.08 : x
  2. Step 2: Convert to fraction form
    11,711.32/16,161.92 = 6,406.08/x
  3. Step 3: Cross multiply
    11,711.32x = 16,161.92 × 6,406.08
  4. Step 4: Simplify right side
    11,711.32x = 103,534,552.47
  5. Step 5: Solve for x
    x = 103,534,552.47/11,711.32
  6. Step 6: Final answer
    x = 8,840.55

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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.