Home / 12,582.91-18,876.63-5,183.32

Finding the Fourth Proportional to 12,582.91, 18,876.63 and 5,183.32

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Solution

The fourth proportional to 12,582.91, 18,876.63 and 5,183.32 is: 7,775.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.91 : 18,876.63 = 5,183.32 : x
  2. Step 2: Convert to fraction form
    12,582.91/18,876.63 = 5,183.32/x
  3. Step 3: Cross multiply
    12,582.91x = 18,876.63 × 5,183.32
  4. Step 4: Simplify right side
    12,582.91x = 97,843,613.81
  5. Step 5: Solve for x
    x = 97,843,613.81/12,582.91
  6. Step 6: Final answer
    x = 7,775.91

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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.