Home / 12,083.91-18,132.47-4,688.66

Finding the Fourth Proportional to 12,083.91, 18,132.47 and 4,688.66

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Solution

The fourth proportional to 12,083.91, 18,132.47 and 4,688.66 is: 7,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.91 : 18,132.47 = 4,688.66 : x
  2. Step 2: Convert to fraction form
    12,083.91/18,132.47 = 4,688.66/x
  3. Step 3: Cross multiply
    12,083.91x = 18,132.47 × 4,688.66
  4. Step 4: Simplify right side
    12,083.91x = 85,016,992.65
  5. Step 5: Solve for x
    x = 85,016,992.65/12,083.91
  6. Step 6: Final answer
    x = 7,035.55

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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.