Home / 10,411.29-15,617.85-4,788.90

Finding the Fourth Proportional to 10,411.29, 15,617.85 and 4,788.90

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Solution

The fourth proportional to 10,411.29, 15,617.85 and 4,788.90 is: 7,183.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,411.29 : 15,617.85 = 4,788.90 : x
  2. Step 2: Convert to fraction form
    10,411.29/15,617.85 = 4,788.90/x
  3. Step 3: Cross multiply
    10,411.29x = 15,617.85 × 4,788.90
  4. Step 4: Simplify right side
    10,411.29x = 74,792,321.87
  5. Step 5: Solve for x
    x = 74,792,321.87/10,411.29
  6. Step 6: Final answer
    x = 7,183.77

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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.