Home / 7,438.72-10,266.86-4,920.92

Finding the Fourth Proportional to 7,438.72, 10,266.86 and 4,920.92

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Solution

The fourth proportional to 7,438.72, 10,266.86 and 4,920.92 is: 6,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.72 : 10,266.86 = 4,920.92 : x
  2. Step 2: Convert to fraction form
    7,438.72/10,266.86 = 4,920.92/x
  3. Step 3: Cross multiply
    7,438.72x = 10,266.86 × 4,920.92
  4. Step 4: Simplify right side
    7,438.72x = 50,522,396.71
  5. Step 5: Solve for x
    x = 50,522,396.71/7,438.72
  6. Step 6: Final answer
    x = 6,791.81

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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.