Home / 12,137.91-18,204.75-3,370.74

Finding the Fourth Proportional to 12,137.91, 18,204.75 and 3,370.74

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Solution

The fourth proportional to 12,137.91, 18,204.75 and 3,370.74 is: 5,055.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.91 : 18,204.75 = 3,370.74 : x
  2. Step 2: Convert to fraction form
    12,137.91/18,204.75 = 3,370.74/x
  3. Step 3: Cross multiply
    12,137.91x = 18,204.75 × 3,370.74
  4. Step 4: Simplify right side
    12,137.91x = 61,363,479.02
  5. Step 5: Solve for x
    x = 61,363,479.02/12,137.91
  6. Step 6: Final answer
    x = 5,055.52

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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.