Home / 7,438.68-11,147.70-4,146.84

Finding the Fourth Proportional to 7,438.68, 11,147.70 and 4,146.84

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Solution

The fourth proportional to 7,438.68, 11,147.70 and 4,146.84 is: 6,214.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.68 : 11,147.70 = 4,146.84 : x
  2. Step 2: Convert to fraction form
    7,438.68/11,147.70 = 4,146.84/x
  3. Step 3: Cross multiply
    7,438.68x = 11,147.70 × 4,146.84
  4. Step 4: Simplify right side
    7,438.68x = 46,227,728.27
  5. Step 5: Solve for x
    x = 46,227,728.27/7,438.68
  6. Step 6: Final answer
    x = 6,214.51

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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.