Home / 19,290.72-28,940.44-6,143.84

Finding the Fourth Proportional to 19,290.72, 28,940.44 and 6,143.84

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Solution

The fourth proportional to 19,290.72, 28,940.44 and 6,143.84 is: 9,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.72 : 28,940.44 = 6,143.84 : x
  2. Step 2: Convert to fraction form
    19,290.72/28,940.44 = 6,143.84/x
  3. Step 3: Cross multiply
    19,290.72x = 28,940.44 × 6,143.84
  4. Step 4: Simplify right side
    19,290.72x = 177,805,432.89
  5. Step 5: Solve for x
    x = 177,805,432.89/19,290.72
  6. Step 6: Final answer
    x = 9,217.15

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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.