Home / 11,720.60-16,174.44-6,616.16

Finding the Fourth Proportional to 11,720.60, 16,174.44 and 6,616.16

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Solution

The fourth proportional to 11,720.60, 16,174.44 and 6,616.16 is: 9,130.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.60 : 16,174.44 = 6,616.16 : x
  2. Step 2: Convert to fraction form
    11,720.60/16,174.44 = 6,616.16/x
  3. Step 3: Cross multiply
    11,720.60x = 16,174.44 × 6,616.16
  4. Step 4: Simplify right side
    11,720.60x = 107,012,682.95
  5. Step 5: Solve for x
    x = 107,012,682.95/11,720.60
  6. Step 6: Final answer
    x = 9,130.31

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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.