Home / 15,111.09-20,846.16-9,803.97

Finding the Fourth Proportional to 15,111.09, 20,846.16 and 9,803.97

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Solution

The fourth proportional to 15,111.09, 20,846.16 and 9,803.97 is: 13,524.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,111.09 : 20,846.16 = 9,803.97 : x
  2. Step 2: Convert to fraction form
    15,111.09/20,846.16 = 9,803.97/x
  3. Step 3: Cross multiply
    15,111.09x = 20,846.16 × 9,803.97
  4. Step 4: Simplify right side
    15,111.09x = 204,375,127.26
  5. Step 5: Solve for x
    x = 204,375,127.26/15,111.09
  6. Step 6: Final answer
    x = 13,524.84

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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.