Home / 12,771.40-19,163.38-5,756.26

Finding the Fourth Proportional to 12,771.40, 19,163.38 and 5,756.26

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Solution

The fourth proportional to 12,771.40, 19,163.38 and 5,756.26 is: 8,637.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.40 : 19,163.38 = 5,756.26 : x
  2. Step 2: Convert to fraction form
    12,771.40/19,163.38 = 5,756.26/x
  3. Step 3: Cross multiply
    12,771.40x = 19,163.38 × 5,756.26
  4. Step 4: Simplify right side
    12,771.40x = 110,309,397.76
  5. Step 5: Solve for x
    x = 110,309,397.76/12,771.40
  6. Step 6: Final answer
    x = 8,637.22

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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.