Home / 19,976.88-27,565.38-11,478.36

Finding the Fourth Proportional to 19,976.88, 27,565.38 and 11,478.36

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Solution

The fourth proportional to 19,976.88, 27,565.38 and 11,478.36 is: 15,838.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.88 : 27,565.38 = 11,478.36 : x
  2. Step 2: Convert to fraction form
    19,976.88/27,565.38 = 11,478.36/x
  3. Step 3: Cross multiply
    19,976.88x = 27,565.38 × 11,478.36
  4. Step 4: Simplify right side
    19,976.88x = 316,405,355.18
  5. Step 5: Solve for x
    x = 316,405,355.18/19,976.88
  6. Step 6: Final answer
    x = 15,838.58

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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.