Home / 19,112.46-28,679.76-8,018.16

Finding the Fourth Proportional to 19,112.46, 28,679.76 and 8,018.16

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Solution

The fourth proportional to 19,112.46, 28,679.76 and 8,018.16 is: 12,031.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.46 : 28,679.76 = 8,018.16 : x
  2. Step 2: Convert to fraction form
    19,112.46/28,679.76 = 8,018.16/x
  3. Step 3: Cross multiply
    19,112.46x = 28,679.76 × 8,018.16
  4. Step 4: Simplify right side
    19,112.46x = 229,958,904.44
  5. Step 5: Solve for x
    x = 229,958,904.44/19,112.46
  6. Step 6: Final answer
    x = 12,031.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.