Home / 8,433.66-11,632.39-6,440.75

Finding the Fourth Proportional to 8,433.66, 11,632.39 and 6,440.75

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Solution

The fourth proportional to 8,433.66, 11,632.39 and 6,440.75 is: 8,883.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,433.66 : 11,632.39 = 6,440.75 : x
  2. Step 2: Convert to fraction form
    8,433.66/11,632.39 = 6,440.75/x
  3. Step 3: Cross multiply
    8,433.66x = 11,632.39 × 6,440.75
  4. Step 4: Simplify right side
    8,433.66x = 74,921,315.89
  5. Step 5: Solve for x
    x = 74,921,315.89/8,433.66
  6. Step 6: Final answer
    x = 8,883.61

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Half scale
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Double scale
Find fourth proportional to 8,434.66, 11,633.77 and 6,441.75
Similar ratio
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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.