Home / 13,986.77-20,975.11-4,750.61

Finding the Fourth Proportional to 13,986.77, 20,975.11 and 4,750.61

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Solution

The fourth proportional to 13,986.77, 20,975.11 and 4,750.61 is: 7,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.77 : 20,975.11 = 4,750.61 : x
  2. Step 2: Convert to fraction form
    13,986.77/20,975.11 = 4,750.61/x
  3. Step 3: Cross multiply
    13,986.77x = 20,975.11 × 4,750.61
  4. Step 4: Simplify right side
    13,986.77x = 99,644,567.32
  5. Step 5: Solve for x
    x = 99,644,567.32/13,986.77
  6. Step 6: Final answer
    x = 7,124.20

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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.