Home / 15,824.97-21,838.01-9,110.68

Finding the Fourth Proportional to 15,824.97, 21,838.01 and 9,110.68

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Solution

The fourth proportional to 15,824.97, 21,838.01 and 9,110.68 is: 12,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,824.97 : 21,838.01 = 9,110.68 : x
  2. Step 2: Convert to fraction form
    15,824.97/21,838.01 = 9,110.68/x
  3. Step 3: Cross multiply
    15,824.97x = 21,838.01 × 9,110.68
  4. Step 4: Simplify right side
    15,824.97x = 198,959,020.80
  5. Step 5: Solve for x
    x = 198,959,020.80/15,824.97
  6. Step 6: Final answer
    x = 12,572.47

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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.