Home / 7,733.48-11,605.68-6,989.90

Finding the Fourth Proportional to 7,733.48, 11,605.68 and 6,989.90

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Solution

The fourth proportional to 7,733.48, 11,605.68 and 6,989.90 is: 10,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,733.48 : 11,605.68 = 6,989.90 : x
  2. Step 2: Convert to fraction form
    7,733.48/11,605.68 = 6,989.90/x
  3. Step 3: Cross multiply
    7,733.48x = 11,605.68 × 6,989.90
  4. Step 4: Simplify right side
    7,733.48x = 81,122,484.60
  5. Step 5: Solve for x
    x = 81,122,484.60/7,733.48
  6. Step 6: Final answer
    x = 10,489.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.