Home / 8,111.24-11,188.44-6,219.74

Finding the Fourth Proportional to 8,111.24, 11,188.44 and 6,219.74

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Solution

The fourth proportional to 8,111.24, 11,188.44 and 6,219.74 is: 8,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.24 : 11,188.44 = 6,219.74 : x
  2. Step 2: Convert to fraction form
    8,111.24/11,188.44 = 6,219.74/x
  3. Step 3: Cross multiply
    8,111.24x = 11,188.44 × 6,219.74
  4. Step 4: Simplify right side
    8,111.24x = 69,589,187.81
  5. Step 5: Solve for x
    x = 69,589,187.81/8,111.24
  6. Step 6: Final answer
    x = 8,579.35

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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.