Home / 13,896.72-19,172.68-7,924.08

Finding the Fourth Proportional to 13,896.72, 19,172.68 and 7,924.08

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Solution

The fourth proportional to 13,896.72, 19,172.68 and 7,924.08 is: 10,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896.72 : 19,172.68 = 7,924.08 : x
  2. Step 2: Convert to fraction form
    13,896.72/19,172.68 = 7,924.08/x
  3. Step 3: Cross multiply
    13,896.72x = 19,172.68 × 7,924.08
  4. Step 4: Simplify right side
    13,896.72x = 151,925,850.13
  5. Step 5: Solve for x
    x = 151,925,850.13/13,896.72
  6. Step 6: Final answer
    x = 10,932.50

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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.