Home / 6,912.81-10,369.17-4,140.27

Finding the Fourth Proportional to 6,912.81, 10,369.17 and 4,140.27

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Solution

The fourth proportional to 6,912.81, 10,369.17 and 4,140.27 is: 6,210.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.81 : 10,369.17 = 4,140.27 : x
  2. Step 2: Convert to fraction form
    6,912.81/10,369.17 = 4,140.27/x
  3. Step 3: Cross multiply
    6,912.81x = 10,369.17 × 4,140.27
  4. Step 4: Simplify right side
    6,912.81x = 42,931,163.48
  5. Step 5: Solve for x
    x = 42,931,163.48/6,912.81
  6. Step 6: Final answer
    x = 6,210.38

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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.