Home / 10,128.67-15,194.52-3,553.70

Finding the Fourth Proportional to 10,128.67, 15,194.52 and 3,553.70

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Solution

The fourth proportional to 10,128.67, 15,194.52 and 3,553.70 is: 5,331.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.67 : 15,194.52 = 3,553.70 : x
  2. Step 2: Convert to fraction form
    10,128.67/15,194.52 = 3,553.70/x
  3. Step 3: Cross multiply
    10,128.67x = 15,194.52 × 3,553.70
  4. Step 4: Simplify right side
    10,128.67x = 53,996,689.75
  5. Step 5: Solve for x
    x = 53,996,689.75/10,128.67
  6. Step 6: Final answer
    x = 5,331.08

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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.