Home / 11,518.76-15,903.54-8,861.48

Finding the Fourth Proportional to 11,518.76, 15,903.54 and 8,861.48

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Solution

The fourth proportional to 11,518.76, 15,903.54 and 8,861.48 is: 12,234.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.76 : 15,903.54 = 8,861.48 : x
  2. Step 2: Convert to fraction form
    11,518.76/15,903.54 = 8,861.48/x
  3. Step 3: Cross multiply
    11,518.76x = 15,903.54 × 8,861.48
  4. Step 4: Simplify right side
    11,518.76x = 140,928,901.64
  5. Step 5: Solve for x
    x = 140,928,901.64/11,518.76
  6. Step 6: Final answer
    x = 12,234.73

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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.