Home / 10,886.86-16,322.32-3,487.11

Finding the Fourth Proportional to 10,886.86, 16,322.32 and 3,487.11

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Solution

The fourth proportional to 10,886.86, 16,322.32 and 3,487.11 is: 5,228.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.86 : 16,322.32 = 3,487.11 : x
  2. Step 2: Convert to fraction form
    10,886.86/16,322.32 = 3,487.11/x
  3. Step 3: Cross multiply
    10,886.86x = 16,322.32 × 3,487.11
  4. Step 4: Simplify right side
    10,886.86x = 56,917,725.30
  5. Step 5: Solve for x
    x = 56,917,725.30/10,886.86
  6. Step 6: Final answer
    x = 5,228.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.