Home / 12,415.08-18,622.26-3,650.16

Finding the Fourth Proportional to 12,415.08, 18,622.26 and 3,650.16

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Solution

The fourth proportional to 12,415.08, 18,622.26 and 3,650.16 is: 5,475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.08 : 18,622.26 = 3,650.16 : x
  2. Step 2: Convert to fraction form
    12,415.08/18,622.26 = 3,650.16/x
  3. Step 3: Cross multiply
    12,415.08x = 18,622.26 × 3,650.16
  4. Step 4: Simplify right side
    12,415.08x = 67,974,228.56
  5. Step 5: Solve for x
    x = 67,974,228.56/12,415.08
  6. Step 6: Final answer
    x = 5,475.13

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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.