Home / 15,076.35-22,608.72-7,172.78

Finding the Fourth Proportional to 15,076.35, 22,608.72 and 7,172.78

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Solution

The fourth proportional to 15,076.35, 22,608.72 and 7,172.78 is: 10,756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,076.35 : 22,608.72 = 7,172.78 : x
  2. Step 2: Convert to fraction form
    15,076.35/22,608.72 = 7,172.78/x
  3. Step 3: Cross multiply
    15,076.35x = 22,608.72 × 7,172.78
  4. Step 4: Simplify right side
    15,076.35x = 162,167,261.60
  5. Step 5: Solve for x
    x = 162,167,261.60/15,076.35
  6. Step 6: Final answer
    x = 10,756.40

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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.