Home / 12,946.07-19,418.97-4,180.79

Finding the Fourth Proportional to 12,946.07, 19,418.97 and 4,180.79

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Solution

The fourth proportional to 12,946.07, 19,418.97 and 4,180.79 is: 6,271.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.07 : 19,418.97 = 4,180.79 : x
  2. Step 2: Convert to fraction form
    12,946.07/19,418.97 = 4,180.79/x
  3. Step 3: Cross multiply
    12,946.07x = 19,418.97 × 4,180.79
  4. Step 4: Simplify right side
    12,946.07x = 81,186,635.59
  5. Step 5: Solve for x
    x = 81,186,635.59/12,946.07
  6. Step 6: Final answer
    x = 6,271.14

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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.