Home / 18,308.97-25,272.54-13,019.13

Finding the Fourth Proportional to 18,308.97, 25,272.54 and 13,019.13

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Solution

The fourth proportional to 18,308.97, 25,272.54 and 13,019.13 is: 17,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.97 : 25,272.54 = 13,019.13 : x
  2. Step 2: Convert to fraction form
    18,308.97/25,272.54 = 13,019.13/x
  3. Step 3: Cross multiply
    18,308.97x = 25,272.54 × 13,019.13
  4. Step 4: Simplify right side
    18,308.97x = 329,026,483.69
  5. Step 5: Solve for x
    x = 329,026,483.69/18,308.97
  6. Step 6: Final answer
    x = 17,970.78

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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.