Home / 8,217.79-11,341.35-4,861.69

Finding the Fourth Proportional to 8,217.79, 11,341.35 and 4,861.69

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Solution

The fourth proportional to 8,217.79, 11,341.35 and 4,861.69 is: 6,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.79 : 11,341.35 = 4,861.69 : x
  2. Step 2: Convert to fraction form
    8,217.79/11,341.35 = 4,861.69/x
  3. Step 3: Cross multiply
    8,217.79x = 11,341.35 × 4,861.69
  4. Step 4: Simplify right side
    8,217.79x = 55,138,111.68
  5. Step 5: Solve for x
    x = 55,138,111.68/8,217.79
  6. Step 6: Final answer
    x = 6,709.60

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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.