Home / 10,707.20-14,778.90-6,231.82

Finding the Fourth Proportional to 10,707.20, 14,778.90 and 6,231.82

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Solution

The fourth proportional to 10,707.20, 14,778.90 and 6,231.82 is: 8,601.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,707.20 : 14,778.90 = 6,231.82 : x
  2. Step 2: Convert to fraction form
    10,707.20/14,778.90 = 6,231.82/x
  3. Step 3: Cross multiply
    10,707.20x = 14,778.90 × 6,231.82
  4. Step 4: Simplify right side
    10,707.20x = 92,099,444.60
  5. Step 5: Solve for x
    x = 92,099,444.60/10,707.20
  6. Step 6: Final answer
    x = 8,601.64

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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.