Home / 12,137.75-18,168.91-6,577.30

Finding the Fourth Proportional to 12,137.75, 18,168.91 and 6,577.30

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Solution

The fourth proportional to 12,137.75, 18,168.91 and 6,577.30 is: 9,845.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.75 : 18,168.91 = 6,577.30 : x
  2. Step 2: Convert to fraction form
    12,137.75/18,168.91 = 6,577.30/x
  3. Step 3: Cross multiply
    12,137.75x = 18,168.91 × 6,577.30
  4. Step 4: Simplify right side
    12,137.75x = 119,502,378.01
  5. Step 5: Solve for x
    x = 119,502,378.01/12,137.75
  6. Step 6: Final answer
    x = 9,845.51

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1.5x scale

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.