Home / 9,516.99-13,131.70-5,539.38

Finding the Fourth Proportional to 9,516.99, 13,131.70 and 5,539.38

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Solution

The fourth proportional to 9,516.99, 13,131.70 and 5,539.38 is: 7,643.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,516.99 : 13,131.70 = 5,539.38 : x
  2. Step 2: Convert to fraction form
    9,516.99/13,131.70 = 5,539.38/x
  3. Step 3: Cross multiply
    9,516.99x = 13,131.70 × 5,539.38
  4. Step 4: Simplify right side
    9,516.99x = 72,741,476.35
  5. Step 5: Solve for x
    x = 72,741,476.35/9,516.99
  6. Step 6: Final answer
    x = 7,643.33

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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.