Home / 12,011.13-18,016.70-3,803.13

Finding the Fourth Proportional to 12,011.13, 18,016.70 and 3,803.13

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Solution

The fourth proportional to 12,011.13, 18,016.70 and 3,803.13 is: 5,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.13 : 18,016.70 = 3,803.13 : x
  2. Step 2: Convert to fraction form
    12,011.13/18,016.70 = 3,803.13/x
  3. Step 3: Cross multiply
    12,011.13x = 18,016.70 × 3,803.13
  4. Step 4: Simplify right side
    12,011.13x = 68,519,852.27
  5. Step 5: Solve for x
    x = 68,519,852.27/12,011.13
  6. Step 6: Final answer
    x = 5,704.70

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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.