Home / 8,616.85-11,890.87-4,840.36

Finding the Fourth Proportional to 8,616.85, 11,890.87 and 4,840.36

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Solution

The fourth proportional to 8,616.85, 11,890.87 and 4,840.36 is: 6,679.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.85 : 11,890.87 = 4,840.36 : x
  2. Step 2: Convert to fraction form
    8,616.85/11,890.87 = 4,840.36/x
  3. Step 3: Cross multiply
    8,616.85x = 11,890.87 × 4,840.36
  4. Step 4: Simplify right side
    8,616.85x = 57,556,049.69
  5. Step 5: Solve for x
    x = 57,556,049.69/8,616.85
  6. Step 6: Final answer
    x = 6,679.48

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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.