Home / 7,361.38-10,145.10-6,238.72

Finding the Fourth Proportional to 7,361.38, 10,145.10 and 6,238.72

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Solution

The fourth proportional to 7,361.38, 10,145.10 and 6,238.72 is: 8,597.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,361.38 : 10,145.10 = 6,238.72 : x
  2. Step 2: Convert to fraction form
    7,361.38/10,145.10 = 6,238.72/x
  3. Step 3: Cross multiply
    7,361.38x = 10,145.10 × 6,238.72
  4. Step 4: Simplify right side
    7,361.38x = 63,292,438.27
  5. Step 5: Solve for x
    x = 63,292,438.27/7,361.38
  6. Step 6: Final answer
    x = 8,597.90

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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.