Home / 11,688.27-16,129.18-6,382.05

Finding the Fourth Proportional to 11,688.27, 16,129.18 and 6,382.05

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Solution

The fourth proportional to 11,688.27, 16,129.18 and 6,382.05 is: 8,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.27 : 16,129.18 = 6,382.05 : x
  2. Step 2: Convert to fraction form
    11,688.27/16,129.18 = 6,382.05/x
  3. Step 3: Cross multiply
    11,688.27x = 16,129.18 × 6,382.05
  4. Step 4: Simplify right side
    11,688.27x = 102,937,233.22
  5. Step 5: Solve for x
    x = 102,937,233.22/11,688.27
  6. Step 6: Final answer
    x = 8,806.88

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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.