Home / 12,019.10-18,030.36-3,699.80

Finding the Fourth Proportional to 12,019.10, 18,030.36 and 3,699.80

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Solution

The fourth proportional to 12,019.10, 18,030.36 and 3,699.80 is: 5,550.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.10 : 18,030.36 = 3,699.80 : x
  2. Step 2: Convert to fraction form
    12,019.10/18,030.36 = 3,699.80/x
  3. Step 3: Cross multiply
    12,019.10x = 18,030.36 × 3,699.80
  4. Step 4: Simplify right side
    12,019.10x = 66,708,725.93
  5. Step 5: Solve for x
    x = 66,708,725.93/12,019.10
  6. Step 6: Final answer
    x = 5,550.23

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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.