Home / 18,578.34-25,643.97-12,537.36

Finding the Fourth Proportional to 18,578.34, 25,643.97 and 12,537.36

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Solution

The fourth proportional to 18,578.34, 25,643.97 and 12,537.36 is: 17,305.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,578.34 : 25,643.97 = 12,537.36 : x
  2. Step 2: Convert to fraction form
    18,578.34/25,643.97 = 12,537.36/x
  3. Step 3: Cross multiply
    18,578.34x = 25,643.97 × 12,537.36
  4. Step 4: Simplify right side
    18,578.34x = 321,507,683.72
  5. Step 5: Solve for x
    x = 321,507,683.72/18,578.34
  6. Step 6: Final answer
    x = 17,305.51

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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.