Home / 8,630.22-11,911.67-6,109.71

Finding the Fourth Proportional to 8,630.22, 11,911.67 and 6,109.71

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Solution

The fourth proportional to 8,630.22, 11,911.67 and 6,109.71 is: 8,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.22 : 11,911.67 = 6,109.71 : x
  2. Step 2: Convert to fraction form
    8,630.22/11,911.67 = 6,109.71/x
  3. Step 3: Cross multiply
    8,630.22x = 11,911.67 × 6,109.71
  4. Step 4: Simplify right side
    8,630.22x = 72,776,849.32
  5. Step 5: Solve for x
    x = 72,776,849.32/8,630.22
  6. Step 6: Final answer
    x = 8,432.79

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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.