Home / 13,940.92-19,235.16-7,891.24

Finding the Fourth Proportional to 13,940.92, 19,235.16 and 7,891.24

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Solution

The fourth proportional to 13,940.92, 19,235.16 and 7,891.24 is: 10,888.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.92 : 19,235.16 = 7,891.24 : x
  2. Step 2: Convert to fraction form
    13,940.92/19,235.16 = 7,891.24/x
  3. Step 3: Cross multiply
    13,940.92x = 19,235.16 × 7,891.24
  4. Step 4: Simplify right side
    13,940.92x = 151,789,264.00
  5. Step 5: Solve for x
    x = 151,789,264.00/13,940.92
  6. Step 6: Final answer
    x = 10,888.04

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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.