Home / 5,518.24-7,615.11-4,108.23

Finding the Fourth Proportional to 5,518.24, 7,615.11 and 4,108.23

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Solution

The fourth proportional to 5,518.24, 7,615.11 and 4,108.23 is: 5,669.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.24 : 7,615.11 = 4,108.23 : x
  2. Step 2: Convert to fraction form
    5,518.24/7,615.11 = 4,108.23/x
  3. Step 3: Cross multiply
    5,518.24x = 7,615.11 × 4,108.23
  4. Step 4: Simplify right side
    5,518.24x = 31,284,633.63
  5. Step 5: Solve for x
    x = 31,284,633.63/5,518.24
  6. Step 6: Final answer
    x = 5,669.32

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Half scale
Find fourth proportional to 11,036.48, 15,230.23 and 8,216.46
Double scale
Find fourth proportional to 5,519.24, 7,616.49 and 4,109.23
Similar ratio
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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.