Home / 8,439.34-11,647.28-5,083.85

Finding the Fourth Proportional to 8,439.34, 11,647.28 and 5,083.85

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Solution

The fourth proportional to 8,439.34, 11,647.28 and 5,083.85 is: 7,016.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.34 : 11,647.28 = 5,083.85 : x
  2. Step 2: Convert to fraction form
    8,439.34/11,647.28 = 5,083.85/x
  3. Step 3: Cross multiply
    8,439.34x = 11,647.28 × 5,083.85
  4. Step 4: Simplify right side
    8,439.34x = 59,212,995.31
  5. Step 5: Solve for x
    x = 59,212,995.31/8,439.34
  6. Step 6: Final answer
    x = 7,016.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.