Home / 12,604.43-18,905.87-5,582.40

Finding the Fourth Proportional to 12,604.43, 18,905.87 and 5,582.40

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Solution

The fourth proportional to 12,604.43, 18,905.87 and 5,582.40 is: 8,373.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604.43 : 18,905.87 = 5,582.40 : x
  2. Step 2: Convert to fraction form
    12,604.43/18,905.87 = 5,582.40/x
  3. Step 3: Cross multiply
    12,604.43x = 18,905.87 × 5,582.40
  4. Step 4: Simplify right side
    12,604.43x = 105,540,100.78
  5. Step 5: Solve for x
    x = 105,540,100.78/12,604.43
  6. Step 6: Final answer
    x = 8,373.26

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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.