Home / 10,856.70-16,281.81-5,659.74

Finding the Fourth Proportional to 10,856.70, 16,281.81 and 5,659.74

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Solution

The fourth proportional to 10,856.70, 16,281.81 and 5,659.74 is: 8,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,856.70 : 16,281.81 = 5,659.74 : x
  2. Step 2: Convert to fraction form
    10,856.70/16,281.81 = 5,659.74/x
  3. Step 3: Cross multiply
    10,856.70x = 16,281.81 × 5,659.74
  4. Step 4: Simplify right side
    10,856.70x = 92,150,811.33
  5. Step 5: Solve for x
    x = 92,150,811.33/10,856.70
  6. Step 6: Final answer
    x = 8,487.92

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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.