Home / 18,675.07-25,736.13-13,360.66

Finding the Fourth Proportional to 18,675.07, 25,736.13 and 13,360.66

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Solution

The fourth proportional to 18,675.07, 25,736.13 and 13,360.66 is: 18,412.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.07 : 25,736.13 = 13,360.66 : x
  2. Step 2: Convert to fraction form
    18,675.07/25,736.13 = 13,360.66/x
  3. Step 3: Cross multiply
    18,675.07x = 25,736.13 × 13,360.66
  4. Step 4: Simplify right side
    18,675.07x = 343,851,618.31
  5. Step 5: Solve for x
    x = 343,851,618.31/18,675.07
  6. Step 6: Final answer
    x = 18,412.34

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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.