Home / 8,621.98-12,943.91-7,331.65

Finding the Fourth Proportional to 8,621.98, 12,943.91 and 7,331.65

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Solution

The fourth proportional to 8,621.98, 12,943.91 and 7,331.65 is: 11,006.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.98 : 12,943.91 = 7,331.65 : x
  2. Step 2: Convert to fraction form
    8,621.98/12,943.91 = 7,331.65/x
  3. Step 3: Cross multiply
    8,621.98x = 12,943.91 × 7,331.65
  4. Step 4: Simplify right side
    8,621.98x = 94,900,203.72
  5. Step 5: Solve for x
    x = 94,900,203.72/8,621.98
  6. Step 6: Final answer
    x = 11,006.78

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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.