Home / 7,821.72-11,715.06-6,054.66

Finding the Fourth Proportional to 7,821.72, 11,715.06 and 6,054.66

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Solution

The fourth proportional to 7,821.72, 11,715.06 and 6,054.66 is: 9,068.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.72 : 11,715.06 = 6,054.66 : x
  2. Step 2: Convert to fraction form
    7,821.72/11,715.06 = 6,054.66/x
  3. Step 3: Cross multiply
    7,821.72x = 11,715.06 × 6,054.66
  4. Step 4: Simplify right side
    7,821.72x = 70,930,705.18
  5. Step 5: Solve for x
    x = 70,930,705.18/7,821.72
  6. Step 6: Final answer
    x = 9,068.43

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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.