Home / 13,582.89-20,378.78-6,563.72

Finding the Fourth Proportional to 13,582.89, 20,378.78 and 6,563.72

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Solution

The fourth proportional to 13,582.89, 20,378.78 and 6,563.72 is: 9,847.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.89 : 20,378.78 = 6,563.72 : x
  2. Step 2: Convert to fraction form
    13,582.89/20,378.78 = 6,563.72/x
  3. Step 3: Cross multiply
    13,582.89x = 20,378.78 × 6,563.72
  4. Step 4: Simplify right side
    13,582.89x = 133,760,495.76
  5. Step 5: Solve for x
    x = 133,760,495.76/13,582.89
  6. Step 6: Final answer
    x = 9,847.72

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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.