Home / 13,891.06-19,165.75-8,223.32

Finding the Fourth Proportional to 13,891.06, 19,165.75 and 8,223.32

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Solution

The fourth proportional to 13,891.06, 19,165.75 and 8,223.32 is: 11,345.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.06 : 19,165.75 = 8,223.32 : x
  2. Step 2: Convert to fraction form
    13,891.06/19,165.75 = 8,223.32/x
  3. Step 3: Cross multiply
    13,891.06x = 19,165.75 × 8,223.32
  4. Step 4: Simplify right side
    13,891.06x = 157,606,122.65
  5. Step 5: Solve for x
    x = 157,606,122.65/13,891.06
  6. Step 6: Final answer
    x = 11,345.87

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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.