Home / 12,385.88-18,577.81-3,501.04

Finding the Fourth Proportional to 12,385.88, 18,577.81 and 3,501.04

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Solution

The fourth proportional to 12,385.88, 18,577.81 and 3,501.04 is: 5,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.88 : 18,577.81 = 3,501.04 : x
  2. Step 2: Convert to fraction form
    12,385.88/18,577.81 = 3,501.04/x
  3. Step 3: Cross multiply
    12,385.88x = 18,577.81 × 3,501.04
  4. Step 4: Simplify right side
    12,385.88x = 65,041,628.99
  5. Step 5: Solve for x
    x = 65,041,628.99/12,385.88
  6. Step 6: Final answer
    x = 5,251.27

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Double scale
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Similar ratio
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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.