Home / 11,420.90-17,133.36-3,627.88

Finding the Fourth Proportional to 11,420.90, 17,133.36 and 3,627.88

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Solution

The fourth proportional to 11,420.90, 17,133.36 and 3,627.88 is: 5,442.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.90 : 17,133.36 = 3,627.88 : x
  2. Step 2: Convert to fraction form
    11,420.90/17,133.36 = 3,627.88/x
  3. Step 3: Cross multiply
    11,420.90x = 17,133.36 × 3,627.88
  4. Step 4: Simplify right side
    11,420.90x = 62,157,774.08
  5. Step 5: Solve for x
    x = 62,157,774.08/11,420.90
  6. Step 6: Final answer
    x = 5,442.46

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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.