Home / 12,016.55-18,029.50-4,994.78

Finding the Fourth Proportional to 12,016.55, 18,029.50 and 4,994.78

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Solution

The fourth proportional to 12,016.55, 18,029.50 and 4,994.78 is: 7,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,016.55 : 18,029.50 = 4,994.78 : x
  2. Step 2: Convert to fraction form
    12,016.55/18,029.50 = 4,994.78/x
  3. Step 3: Cross multiply
    12,016.55x = 18,029.50 × 4,994.78
  4. Step 4: Simplify right side
    12,016.55x = 90,053,283.38
  5. Step 5: Solve for x
    x = 90,053,283.38/12,016.55
  6. Step 6: Final answer
    x = 7,494.10

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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.