Home / 12,760.47-19,138.14-4,440.87

Finding the Fourth Proportional to 12,760.47, 19,138.14 and 4,440.87

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Solution

The fourth proportional to 12,760.47, 19,138.14 and 4,440.87 is: 6,660.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.47 : 19,138.14 = 4,440.87 : x
  2. Step 2: Convert to fraction form
    12,760.47/19,138.14 = 4,440.87/x
  3. Step 3: Cross multiply
    12,760.47x = 19,138.14 × 4,440.87
  4. Step 4: Simplify right side
    12,760.47x = 84,989,991.78
  5. Step 5: Solve for x
    x = 84,989,991.78/12,760.47
  6. Step 6: Final answer
    x = 6,660.41

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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.