Home / 13,866.07-20,769.67-12,874.63

Finding the Fourth Proportional to 13,866.07, 20,769.67 and 12,874.63

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Solution

The fourth proportional to 13,866.07, 20,769.67 and 12,874.63 is: 19,284.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.07 : 20,769.67 = 12,874.63 : x
  2. Step 2: Convert to fraction form
    13,866.07/20,769.67 = 12,874.63/x
  3. Step 3: Cross multiply
    13,866.07x = 20,769.67 × 12,874.63
  4. Step 4: Simplify right side
    13,866.07x = 267,401,816.47
  5. Step 5: Solve for x
    x = 267,401,816.47/13,866.07
  6. Step 6: Final answer
    x = 19,284.61

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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.