Home / 12,946.08-19,418.96-4,180.80

Finding the Fourth Proportional to 12,946.08, 19,418.96 and 4,180.80

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Solution

The fourth proportional to 12,946.08, 19,418.96 and 4,180.80 is: 6,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.08 : 19,418.96 = 4,180.80 : x
  2. Step 2: Convert to fraction form
    12,946.08/19,418.96 = 4,180.80/x
  3. Step 3: Cross multiply
    12,946.08x = 19,418.96 × 4,180.80
  4. Step 4: Simplify right side
    12,946.08x = 81,186,787.97
  5. Step 5: Solve for x
    x = 81,186,787.97/12,946.08
  6. Step 6: Final answer
    x = 6,271.15

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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.