Home / 12,108.42-18,163.44-4,712.40

Finding the Fourth Proportional to 12,108.42, 18,163.44 and 4,712.40

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Solution

The fourth proportional to 12,108.42, 18,163.44 and 4,712.40 is: 7,068.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.42 : 18,163.44 = 4,712.40 : x
  2. Step 2: Convert to fraction form
    12,108.42/18,163.44 = 4,712.40/x
  3. Step 3: Cross multiply
    12,108.42x = 18,163.44 × 4,712.40
  4. Step 4: Simplify right side
    12,108.42x = 85,593,394.66
  5. Step 5: Solve for x
    x = 85,593,394.66/12,108.42
  6. Step 6: Final answer
    x = 7,068.92

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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.