Home / 15,160.54-20,910.36-10,122.34

Finding the Fourth Proportional to 15,160.54, 20,910.36 and 10,122.34

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Solution

The fourth proportional to 15,160.54, 20,910.36 and 10,122.34 is: 13,961.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,160.54 : 20,910.36 = 10,122.34 : x
  2. Step 2: Convert to fraction form
    15,160.54/20,910.36 = 10,122.34/x
  3. Step 3: Cross multiply
    15,160.54x = 20,910.36 × 10,122.34
  4. Step 4: Simplify right side
    15,160.54x = 211,661,759.13
  5. Step 5: Solve for x
    x = 211,661,759.13/15,160.54
  6. Step 6: Final answer
    x = 13,961.36

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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.