Home / 15,493.44-21,375.36-10,191.12

Finding the Fourth Proportional to 15,493.44, 21,375.36 and 10,191.12

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Solution

The fourth proportional to 15,493.44, 21,375.36 and 10,191.12 is: 14,060.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,493.44 : 21,375.36 = 10,191.12 : x
  2. Step 2: Convert to fraction form
    15,493.44/21,375.36 = 10,191.12/x
  3. Step 3: Cross multiply
    15,493.44x = 21,375.36 × 10,191.12
  4. Step 4: Simplify right side
    15,493.44x = 217,838,858.80
  5. Step 5: Solve for x
    x = 217,838,858.80/15,493.44
  6. Step 6: Final answer
    x = 14,060.07

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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.