Home / 11,154.62-15,400.05-6,968.54

Finding the Fourth Proportional to 11,154.62, 15,400.05 and 6,968.54

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Solution

The fourth proportional to 11,154.62, 15,400.05 and 6,968.54 is: 9,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,154.62 : 15,400.05 = 6,968.54 : x
  2. Step 2: Convert to fraction form
    11,154.62/15,400.05 = 6,968.54/x
  3. Step 3: Cross multiply
    11,154.62x = 15,400.05 × 6,968.54
  4. Step 4: Simplify right side
    11,154.62x = 107,315,864.43
  5. Step 5: Solve for x
    x = 107,315,864.43/11,154.62
  6. Step 6: Final answer
    x = 9,620.75

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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.