Home / 11,317.86-15,619.23-8,518.50

Finding the Fourth Proportional to 11,317.86, 15,619.23 and 8,518.50

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Solution

The fourth proportional to 11,317.86, 15,619.23 and 8,518.50 is: 11,755.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.86 : 15,619.23 = 8,518.50 : x
  2. Step 2: Convert to fraction form
    11,317.86/15,619.23 = 8,518.50/x
  3. Step 3: Cross multiply
    11,317.86x = 15,619.23 × 8,518.50
  4. Step 4: Simplify right side
    11,317.86x = 133,052,410.76
  5. Step 5: Solve for x
    x = 133,052,410.76/11,317.86
  6. Step 6: Final answer
    x = 11,755.97

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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.