Home / 19,995.11-29,996.88-7,515.24

Finding the Fourth Proportional to 19,995.11, 29,996.88 and 7,515.24

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Solution

The fourth proportional to 19,995.11, 29,996.88 and 7,515.24 is: 11,274.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.11 : 29,996.88 = 7,515.24 : x
  2. Step 2: Convert to fraction form
    19,995.11/29,996.88 = 7,515.24/x
  3. Step 3: Cross multiply
    19,995.11x = 29,996.88 × 7,515.24
  4. Step 4: Simplify right side
    19,995.11x = 225,433,752.45
  5. Step 5: Solve for x
    x = 225,433,752.45/19,995.11
  6. Step 6: Final answer
    x = 11,274.44

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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.