Home / 19,188.44-26,470.70-12,380.60

Finding the Fourth Proportional to 19,188.44, 26,470.70 and 12,380.60

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Solution

The fourth proportional to 19,188.44, 26,470.70 and 12,380.60 is: 17,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.44 : 26,470.70 = 12,380.60 : x
  2. Step 2: Convert to fraction form
    19,188.44/26,470.70 = 12,380.60/x
  3. Step 3: Cross multiply
    19,188.44x = 26,470.70 × 12,380.60
  4. Step 4: Simplify right side
    19,188.44x = 327,723,148.42
  5. Step 5: Solve for x
    x = 327,723,148.42/19,188.44
  6. Step 6: Final answer
    x = 17,079.20

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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.