Home / 9,085.86-13,629.60-3,890.52

Finding the Fourth Proportional to 9,085.86, 13,629.60 and 3,890.52

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Solution

The fourth proportional to 9,085.86, 13,629.60 and 3,890.52 is: 5,836.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,085.86 : 13,629.60 = 3,890.52 : x
  2. Step 2: Convert to fraction form
    9,085.86/13,629.60 = 3,890.52/x
  3. Step 3: Cross multiply
    9,085.86x = 13,629.60 × 3,890.52
  4. Step 4: Simplify right side
    9,085.86x = 53,026,231.39
  5. Step 5: Solve for x
    x = 53,026,231.39/9,085.86
  6. Step 6: Final answer
    x = 5,836.13

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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.