Home / 11,164.28-15,401.10-7,627.64

Finding the Fourth Proportional to 11,164.28, 15,401.10 and 7,627.64

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Solution

The fourth proportional to 11,164.28, 15,401.10 and 7,627.64 is: 10,522.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.28 : 15,401.10 = 7,627.64 : x
  2. Step 2: Convert to fraction form
    11,164.28/15,401.10 = 7,627.64/x
  3. Step 3: Cross multiply
    11,164.28x = 15,401.10 × 7,627.64
  4. Step 4: Simplify right side
    11,164.28x = 117,474,046.40
  5. Step 5: Solve for x
    x = 117,474,046.40/11,164.28
  6. Step 6: Final answer
    x = 10,522.31

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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.