Home / 7,864.12-11,803.47-3,971.26

Finding the Fourth Proportional to 7,864.12, 11,803.47 and 3,971.26

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Solution

The fourth proportional to 7,864.12, 11,803.47 and 3,971.26 is: 5,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.12 : 11,803.47 = 3,971.26 : x
  2. Step 2: Convert to fraction form
    7,864.12/11,803.47 = 3,971.26/x
  3. Step 3: Cross multiply
    7,864.12x = 11,803.47 × 3,971.26
  4. Step 4: Simplify right side
    7,864.12x = 46,874,648.27
  5. Step 5: Solve for x
    x = 46,874,648.27/7,864.12
  6. Step 6: Final answer
    x = 5,960.57

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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.