Home / 9,665.76-13,339.99-5,687.25

Finding the Fourth Proportional to 9,665.76, 13,339.99 and 5,687.25

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Solution

The fourth proportional to 9,665.76, 13,339.99 and 5,687.25 is: 7,849.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,665.76 : 13,339.99 = 5,687.25 : x
  2. Step 2: Convert to fraction form
    9,665.76/13,339.99 = 5,687.25/x
  3. Step 3: Cross multiply
    9,665.76x = 13,339.99 × 5,687.25
  4. Step 4: Simplify right side
    9,665.76x = 75,867,858.13
  5. Step 5: Solve for x
    x = 75,867,858.13/9,665.76
  6. Step 6: Final answer
    x = 7,849.14

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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.