Home / 19,589.45-27,026.79-12,874.55

Finding the Fourth Proportional to 19,589.45, 27,026.79 and 12,874.55

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Solution

The fourth proportional to 19,589.45, 27,026.79 and 12,874.55 is: 17,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,589.45 : 27,026.79 = 12,874.55 : x
  2. Step 2: Convert to fraction form
    19,589.45/27,026.79 = 12,874.55/x
  3. Step 3: Cross multiply
    19,589.45x = 27,026.79 × 12,874.55
  4. Step 4: Simplify right side
    19,589.45x = 347,957,624.06
  5. Step 5: Solve for x
    x = 347,957,624.06/19,589.45
  6. Step 6: Final answer
    x = 17,762.51

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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.