Home / 12,415.33-18,624.75-3,649.06

Finding the Fourth Proportional to 12,415.33, 18,624.75 and 3,649.06

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Solution

The fourth proportional to 12,415.33, 18,624.75 and 3,649.06 is: 5,474.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.33 : 18,624.75 = 3,649.06 : x
  2. Step 2: Convert to fraction form
    12,415.33/18,624.75 = 3,649.06/x
  3. Step 3: Cross multiply
    12,415.33x = 18,624.75 × 3,649.06
  4. Step 4: Simplify right side
    12,415.33x = 67,962,830.24
  5. Step 5: Solve for x
    x = 67,962,830.24/12,415.33
  6. Step 6: Final answer
    x = 5,474.11

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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.