Home / 7,478.12-11,218.55-3,095.91

Finding the Fourth Proportional to 7,478.12, 11,218.55 and 3,095.91

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Solution

The fourth proportional to 7,478.12, 11,218.55 and 3,095.91 is: 4,644.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.12 : 11,218.55 = 3,095.91 : x
  2. Step 2: Convert to fraction form
    7,478.12/11,218.55 = 3,095.91/x
  3. Step 3: Cross multiply
    7,478.12x = 11,218.55 × 3,095.91
  4. Step 4: Simplify right side
    7,478.12x = 34,731,605.65
  5. Step 5: Solve for x
    x = 34,731,605.65/7,478.12
  6. Step 6: Final answer
    x = 4,644.43

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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.