Home / 15,150.24-20,896.56-10,111.92

Finding the Fourth Proportional to 15,150.24, 20,896.56 and 10,111.92

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Solution

The fourth proportional to 15,150.24, 20,896.56 and 10,111.92 is: 13,947.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.24 : 20,896.56 = 10,111.92 : x
  2. Step 2: Convert to fraction form
    15,150.24/20,896.56 = 10,111.92/x
  3. Step 3: Cross multiply
    15,150.24x = 20,896.56 × 10,111.92
  4. Step 4: Simplify right side
    15,150.24x = 211,304,343.00
  5. Step 5: Solve for x
    x = 211,304,343.00/15,150.24
  6. Step 6: Final answer
    x = 13,947.26

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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.