Home / 11,869.19-16,379.08-6,832.71

Finding the Fourth Proportional to 11,869.19, 16,379.08 and 6,832.71

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Solution

The fourth proportional to 11,869.19, 16,379.08 and 6,832.71 is: 9,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.19 : 16,379.08 = 6,832.71 : x
  2. Step 2: Convert to fraction form
    11,869.19/16,379.08 = 6,832.71/x
  3. Step 3: Cross multiply
    11,869.19x = 16,379.08 × 6,832.71
  4. Step 4: Simplify right side
    11,869.19x = 111,913,503.71
  5. Step 5: Solve for x
    x = 111,913,503.71/11,869.19
  6. Step 6: Final answer
    x = 9,428.91

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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.