Home / 11,001.40-16,487.70-4,422.20

Finding the Fourth Proportional to 11,001.40, 16,487.70 and 4,422.20

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Solution

The fourth proportional to 11,001.40, 16,487.70 and 4,422.20 is: 6,627.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.40 : 16,487.70 = 4,422.20 : x
  2. Step 2: Convert to fraction form
    11,001.40/16,487.70 = 4,422.20/x
  3. Step 3: Cross multiply
    11,001.40x = 16,487.70 × 4,422.20
  4. Step 4: Simplify right side
    11,001.40x = 72,911,906.94
  5. Step 5: Solve for x
    x = 72,911,906.94/11,001.40
  6. Step 6: Final answer
    x = 6,627.51

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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.