Home / 18,447.86-25,450.29-12,862.10

Finding the Fourth Proportional to 18,447.86, 25,450.29 and 12,862.10

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Solution

The fourth proportional to 18,447.86, 25,450.29 and 12,862.10 is: 17,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.86 : 25,450.29 = 12,862.10 : x
  2. Step 2: Convert to fraction form
    18,447.86/25,450.29 = 12,862.10/x
  3. Step 3: Cross multiply
    18,447.86x = 25,450.29 × 12,862.10
  4. Step 4: Simplify right side
    18,447.86x = 327,344,175.01
  5. Step 5: Solve for x
    x = 327,344,175.01/18,447.86
  6. Step 6: Final answer
    x = 17,744.29

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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.