Home / 11,811.29-16,298.96-6,505.11

Finding the Fourth Proportional to 11,811.29, 16,298.96 and 6,505.11

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Solution

The fourth proportional to 11,811.29, 16,298.96 and 6,505.11 is: 8,976.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.29 : 16,298.96 = 6,505.11 : x
  2. Step 2: Convert to fraction form
    11,811.29/16,298.96 = 6,505.11/x
  3. Step 3: Cross multiply
    11,811.29x = 16,298.96 × 6,505.11
  4. Step 4: Simplify right side
    11,811.29x = 106,026,495.16
  5. Step 5: Solve for x
    x = 106,026,495.16/11,811.29
  6. Step 6: Final answer
    x = 8,976.71

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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.