Home / 10,128.26-15,193.91-3,553.29

Finding the Fourth Proportional to 10,128.26, 15,193.91 and 3,553.29

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Solution

The fourth proportional to 10,128.26, 15,193.91 and 3,553.29 is: 5,330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.26 : 15,193.91 = 3,553.29 : x
  2. Step 2: Convert to fraction form
    10,128.26/15,193.91 = 3,553.29/x
  3. Step 3: Cross multiply
    10,128.26x = 15,193.91 × 3,553.29
  4. Step 4: Simplify right side
    10,128.26x = 53,988,368.46
  5. Step 5: Solve for x
    x = 53,988,368.46/10,128.26
  6. Step 6: Final answer
    x = 5,330.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.