Home / 11,148.58-15,395.46-7,176.60

Finding the Fourth Proportional to 11,148.58, 15,395.46 and 7,176.60

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Solution

The fourth proportional to 11,148.58, 15,395.46 and 7,176.60 is: 9,910.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.58 : 15,395.46 = 7,176.60 : x
  2. Step 2: Convert to fraction form
    11,148.58/15,395.46 = 7,176.60/x
  3. Step 3: Cross multiply
    11,148.58x = 15,395.46 × 7,176.60
  4. Step 4: Simplify right side
    11,148.58x = 110,486,945.38
  5. Step 5: Solve for x
    x = 110,486,945.38/11,148.58
  6. Step 6: Final answer
    x = 9,910.41

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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.