Home / 7,343.20-10,133.66-3,986.07

Finding the Fourth Proportional to 7,343.20, 10,133.66 and 3,986.07

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Solution

The fourth proportional to 7,343.20, 10,133.66 and 3,986.07 is: 5,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,343.20 : 10,133.66 = 3,986.07 : x
  2. Step 2: Convert to fraction form
    7,343.20/10,133.66 = 3,986.07/x
  3. Step 3: Cross multiply
    7,343.20x = 10,133.66 × 3,986.07
  4. Step 4: Simplify right side
    7,343.20x = 40,393,478.12
  5. Step 5: Solve for x
    x = 40,393,478.12/7,343.20
  6. Step 6: Final answer
    x = 5,500.80

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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.