Home / 12,006.88-18,011.18-4,611.33

Finding the Fourth Proportional to 12,006.88, 18,011.18 and 4,611.33

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Solution

The fourth proportional to 12,006.88, 18,011.18 and 4,611.33 is: 6,917.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.88 : 18,011.18 = 4,611.33 : x
  2. Step 2: Convert to fraction form
    12,006.88/18,011.18 = 4,611.33/x
  3. Step 3: Cross multiply
    12,006.88x = 18,011.18 × 4,611.33
  4. Step 4: Simplify right side
    12,006.88x = 83,055,565.61
  5. Step 5: Solve for x
    x = 83,055,565.61/12,006.88
  6. Step 6: Final answer
    x = 6,917.33

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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.