Home / 19,207.86-26,517.29-13,271.44

Finding the Fourth Proportional to 19,207.86, 26,517.29 and 13,271.44

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Solution

The fourth proportional to 19,207.86, 26,517.29 and 13,271.44 is: 18,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,207.86 : 26,517.29 = 13,271.44 : x
  2. Step 2: Convert to fraction form
    19,207.86/26,517.29 = 13,271.44/x
  3. Step 3: Cross multiply
    19,207.86x = 26,517.29 × 13,271.44
  4. Step 4: Simplify right side
    19,207.86x = 351,922,623.20
  5. Step 5: Solve for x
    x = 351,922,623.20/19,207.86
  6. Step 6: Final answer
    x = 18,321.80

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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.