Home / 8,219.11-11,341.74-4,861.66

Finding the Fourth Proportional to 8,219.11, 11,341.74 and 4,861.66

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Solution

The fourth proportional to 8,219.11, 11,341.74 and 4,861.66 is: 6,708.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.11 : 11,341.74 = 4,861.66 : x
  2. Step 2: Convert to fraction form
    8,219.11/11,341.74 = 4,861.66/x
  3. Step 3: Cross multiply
    8,219.11x = 11,341.74 × 4,861.66
  4. Step 4: Simplify right side
    8,219.11x = 55,139,683.69
  5. Step 5: Solve for x
    x = 55,139,683.69/8,219.11
  6. Step 6: Final answer
    x = 6,708.72

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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.