Home / 18,578.07-25,637.60-10,080.20

Finding the Fourth Proportional to 18,578.07, 25,637.60 and 10,080.20

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Solution

The fourth proportional to 18,578.07, 25,637.60 and 10,080.20 is: 13,910.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.07 : 25,637.60 = 10,080.20 : x
  2. Step 2: Convert to fraction form
    18,578.07/25,637.60 = 10,080.20/x
  3. Step 3: Cross multiply
    18,578.07x = 25,637.60 × 10,080.20
  4. Step 4: Simplify right side
    18,578.07x = 258,431,956.93
  5. Step 5: Solve for x
    x = 258,431,956.93/18,578.07
  6. Step 6: Final answer
    x = 13,910.59

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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.