Home / 19,078.53-26,315.17-13,425.13

Finding the Fourth Proportional to 19,078.53, 26,315.17 and 13,425.13

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Solution

The fourth proportional to 19,078.53, 26,315.17 and 13,425.13 is: 18,517.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.53 : 26,315.17 = 13,425.13 : x
  2. Step 2: Convert to fraction form
    19,078.53/26,315.17 = 13,425.13/x
  3. Step 3: Cross multiply
    19,078.53x = 26,315.17 × 13,425.13
  4. Step 4: Simplify right side
    19,078.53x = 353,284,578.22
  5. Step 5: Solve for x
    x = 353,284,578.22/19,078.53
  6. Step 6: Final answer
    x = 18,517.39

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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.