Home / 13,289.12-19,936.80-4,055.12

Finding the Fourth Proportional to 13,289.12, 19,936.80 and 4,055.12

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Solution

The fourth proportional to 13,289.12, 19,936.80 and 4,055.12 is: 6,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.12 : 19,936.80 = 4,055.12 : x
  2. Step 2: Convert to fraction form
    13,289.12/19,936.80 = 4,055.12/x
  3. Step 3: Cross multiply
    13,289.12x = 19,936.80 × 4,055.12
  4. Step 4: Simplify right side
    13,289.12x = 80,846,116.42
  5. Step 5: Solve for x
    x = 80,846,116.42/13,289.12
  6. Step 6: Final answer
    x = 6,083.63

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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.