Home / 7,343.70-10,134.35-3,986.57

Finding the Fourth Proportional to 7,343.70, 10,134.35 and 3,986.57

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Solution

The fourth proportional to 7,343.70, 10,134.35 and 3,986.57 is: 5,501.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,343.70 : 10,134.35 = 3,986.57 : x
  2. Step 2: Convert to fraction form
    7,343.70/10,134.35 = 3,986.57/x
  3. Step 3: Cross multiply
    7,343.70x = 10,134.35 × 3,986.57
  4. Step 4: Simplify right side
    7,343.70x = 40,401,295.68
  5. Step 5: Solve for x
    x = 40,401,295.68/7,343.70
  6. Step 6: Final answer
    x = 5,501.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.