Home / 9,720.15-14,580.84-3,876.61

Finding the Fourth Proportional to 9,720.15, 14,580.84 and 3,876.61

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Solution

The fourth proportional to 9,720.15, 14,580.84 and 3,876.61 is: 5,815.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.15 : 14,580.84 = 3,876.61 : x
  2. Step 2: Convert to fraction form
    9,720.15/14,580.84 = 3,876.61/x
  3. Step 3: Cross multiply
    9,720.15x = 14,580.84 × 3,876.61
  4. Step 4: Simplify right side
    9,720.15x = 56,524,202.87
  5. Step 5: Solve for x
    x = 56,524,202.87/9,720.15
  6. Step 6: Final answer
    x = 5,815.16

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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.