Home / 8,505.31-11,739.19-4,729.77

Finding the Fourth Proportional to 8,505.31, 11,739.19 and 4,729.77

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Solution

The fourth proportional to 8,505.31, 11,739.19 and 4,729.77 is: 6,528.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.31 : 11,739.19 = 4,729.77 : x
  2. Step 2: Convert to fraction form
    8,505.31/11,739.19 = 4,729.77/x
  3. Step 3: Cross multiply
    8,505.31x = 11,739.19 × 4,729.77
  4. Step 4: Simplify right side
    8,505.31x = 55,523,668.69
  5. Step 5: Solve for x
    x = 55,523,668.69/8,505.31
  6. Step 6: Final answer
    x = 6,528.12

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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.