Home / 9,687.26-13,369.37-5,709.66

Finding the Fourth Proportional to 9,687.26, 13,369.37 and 5,709.66

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Solution

The fourth proportional to 9,687.26, 13,369.37 and 5,709.66 is: 7,879.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.26 : 13,369.37 = 5,709.66 : x
  2. Step 2: Convert to fraction form
    9,687.26/13,369.37 = 5,709.66/x
  3. Step 3: Cross multiply
    9,687.26x = 13,369.37 × 5,709.66
  4. Step 4: Simplify right side
    9,687.26x = 76,334,557.11
  5. Step 5: Solve for x
    x = 76,334,557.11/9,687.26
  6. Step 6: Final answer
    x = 7,879.89

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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.