Home / 12,124.54-18,182.94-4,727.20

Finding the Fourth Proportional to 12,124.54, 18,182.94 and 4,727.20

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Solution

The fourth proportional to 12,124.54, 18,182.94 and 4,727.20 is: 7,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.54 : 18,182.94 = 4,727.20 : x
  2. Step 2: Convert to fraction form
    12,124.54/18,182.94 = 4,727.20/x
  3. Step 3: Cross multiply
    12,124.54x = 18,182.94 × 4,727.20
  4. Step 4: Simplify right side
    12,124.54x = 85,954,393.97
  5. Step 5: Solve for x
    x = 85,954,393.97/12,124.54
  6. Step 6: Final answer
    x = 7,089.29

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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.