Home / 11,711.93-16,162.61-6,406.83

Finding the Fourth Proportional to 11,711.93, 16,162.61 and 6,406.83

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Solution

The fourth proportional to 11,711.93, 16,162.61 and 6,406.83 is: 8,841.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.93 : 16,162.61 = 6,406.83 : x
  2. Step 2: Convert to fraction form
    11,711.93/16,162.61 = 6,406.83/x
  3. Step 3: Cross multiply
    11,711.93x = 16,162.61 × 6,406.83
  4. Step 4: Simplify right side
    11,711.93x = 103,551,062.59
  5. Step 5: Solve for x
    x = 103,551,062.59/11,711.93
  6. Step 6: Final answer
    x = 8,841.51

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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.