Home / 10,998.29-15,163.36-7,012.48

Finding the Fourth Proportional to 10,998.29, 15,163.36 and 7,012.48

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Solution

The fourth proportional to 10,998.29, 15,163.36 and 7,012.48 is: 9,668.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.29 : 15,163.36 = 7,012.48 : x
  2. Step 2: Convert to fraction form
    10,998.29/15,163.36 = 7,012.48/x
  3. Step 3: Cross multiply
    10,998.29x = 15,163.36 × 7,012.48
  4. Step 4: Simplify right side
    10,998.29x = 106,332,703.29
  5. Step 5: Solve for x
    x = 106,332,703.29/10,998.29
  6. Step 6: Final answer
    x = 9,668.12

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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.