Home / 10,389.87-15,592.77-7,623.72

Finding the Fourth Proportional to 10,389.87, 15,592.77 and 7,623.72

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Solution

The fourth proportional to 10,389.87, 15,592.77 and 7,623.72 is: 11,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.87 : 15,592.77 = 7,623.72 : x
  2. Step 2: Convert to fraction form
    10,389.87/15,592.77 = 7,623.72/x
  3. Step 3: Cross multiply
    10,389.87x = 15,592.77 × 7,623.72
  4. Step 4: Simplify right side
    10,389.87x = 118,874,912.50
  5. Step 5: Solve for x
    x = 118,874,912.50/10,389.87
  6. Step 6: Final answer
    x = 11,441.42

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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.