Home / 15,137.07-20,889.83-12,614.96

Finding the Fourth Proportional to 15,137.07, 20,889.83 and 12,614.96

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Solution

The fourth proportional to 15,137.07, 20,889.83 and 12,614.96 is: 17,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,137.07 : 20,889.83 = 12,614.96 : x
  2. Step 2: Convert to fraction form
    15,137.07/20,889.83 = 12,614.96/x
  3. Step 3: Cross multiply
    15,137.07x = 20,889.83 × 12,614.96
  4. Step 4: Simplify right side
    15,137.07x = 263,524,369.86
  5. Step 5: Solve for x
    x = 263,524,369.86/15,137.07
  6. Step 6: Final answer
    x = 17,409.21

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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.