Home / 11,231.10-16,856.85-5,688.30

Finding the Fourth Proportional to 11,231.10, 16,856.85 and 5,688.30

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Solution

The fourth proportional to 11,231.10, 16,856.85 and 5,688.30 is: 8,537.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.10 : 16,856.85 = 5,688.30 : x
  2. Step 2: Convert to fraction form
    11,231.10/16,856.85 = 5,688.30/x
  3. Step 3: Cross multiply
    11,231.10x = 16,856.85 × 5,688.30
  4. Step 4: Simplify right side
    11,231.10x = 95,886,819.86
  5. Step 5: Solve for x
    x = 95,886,819.86/11,231.10
  6. Step 6: Final answer
    x = 8,537.62

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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.