Home / 12,415.21-18,625.11-4,095.57

Finding the Fourth Proportional to 12,415.21, 18,625.11 and 4,095.57

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Solution

The fourth proportional to 12,415.21, 18,625.11 and 4,095.57 is: 6,144.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.21 : 18,625.11 = 4,095.57 : x
  2. Step 2: Convert to fraction form
    12,415.21/18,625.11 = 4,095.57/x
  3. Step 3: Cross multiply
    12,415.21x = 18,625.11 × 4,095.57
  4. Step 4: Simplify right side
    12,415.21x = 76,280,441.76
  5. Step 5: Solve for x
    x = 76,280,441.76/12,415.21
  6. Step 6: Final answer
    x = 6,144.11

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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.