Home / 19,643.75-27,108.92-11,146.23

Finding the Fourth Proportional to 19,643.75, 27,108.92 and 11,146.23

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Solution

The fourth proportional to 19,643.75, 27,108.92 and 11,146.23 is: 15,382.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.75 : 27,108.92 = 11,146.23 : x
  2. Step 2: Convert to fraction form
    19,643.75/27,108.92 = 11,146.23/x
  3. Step 3: Cross multiply
    19,643.75x = 27,108.92 × 11,146.23
  4. Step 4: Simplify right side
    19,643.75x = 302,162,330.13
  5. Step 5: Solve for x
    x = 302,162,330.13/19,643.75
  6. Step 6: Final answer
    x = 15,382.11

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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.