Home / 10,955.88-15,087.26-9,519.57

Finding the Fourth Proportional to 10,955.88, 15,087.26 and 9,519.57

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Solution

The fourth proportional to 10,955.88, 15,087.26 and 9,519.57 is: 13,109.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.88 : 15,087.26 = 9,519.57 : x
  2. Step 2: Convert to fraction form
    10,955.88/15,087.26 = 9,519.57/x
  3. Step 3: Cross multiply
    10,955.88x = 15,087.26 × 9,519.57
  4. Step 4: Simplify right side
    10,955.88x = 143,624,251.48
  5. Step 5: Solve for x
    x = 143,624,251.48/10,955.88
  6. Step 6: Final answer
    x = 13,109.33

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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.