Home / 10,878.18-16,316.55-6,481.86

Finding the Fourth Proportional to 10,878.18, 16,316.55 and 6,481.86

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Solution

The fourth proportional to 10,878.18, 16,316.55 and 6,481.86 is: 9,722.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.18 : 16,316.55 = 6,481.86 : x
  2. Step 2: Convert to fraction form
    10,878.18/16,316.55 = 6,481.86/x
  3. Step 3: Cross multiply
    10,878.18x = 16,316.55 × 6,481.86
  4. Step 4: Simplify right side
    10,878.18x = 105,761,592.78
  5. Step 5: Solve for x
    x = 105,761,592.78/10,878.18
  6. Step 6: Final answer
    x = 9,722.36

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1.5x scale

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.