Home / 10,177.20-15,260.40-3,603.60

Finding the Fourth Proportional to 10,177.20, 15,260.40 and 3,603.60

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Solution

The fourth proportional to 10,177.20, 15,260.40 and 3,603.60 is: 5,403.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,177.20 : 15,260.40 = 3,603.60 : x
  2. Step 2: Convert to fraction form
    10,177.20/15,260.40 = 3,603.60/x
  3. Step 3: Cross multiply
    10,177.20x = 15,260.40 × 3,603.60
  4. Step 4: Simplify right side
    10,177.20x = 54,992,377.44
  5. Step 5: Solve for x
    x = 54,992,377.44/10,177.20
  6. Step 6: Final answer
    x = 5,403.49

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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.