Home / 11,149.32-16,720.74-7,274.28

Finding the Fourth Proportional to 11,149.32, 16,720.74 and 7,274.28

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Solution

The fourth proportional to 11,149.32, 16,720.74 and 7,274.28 is: 10,909.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.32 : 16,720.74 = 7,274.28 : x
  2. Step 2: Convert to fraction form
    11,149.32/16,720.74 = 7,274.28/x
  3. Step 3: Cross multiply
    11,149.32x = 16,720.74 × 7,274.28
  4. Step 4: Simplify right side
    11,149.32x = 121,631,344.57
  5. Step 5: Solve for x
    x = 121,631,344.57/11,149.32
  6. Step 6: Final answer
    x = 10,909.31

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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.