Home / 7,895.89-10,900.26-4,912.68

Finding the Fourth Proportional to 7,895.89, 10,900.26 and 4,912.68

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Solution

The fourth proportional to 7,895.89, 10,900.26 and 4,912.68 is: 6,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,895.89 : 10,900.26 = 4,912.68 : x
  2. Step 2: Convert to fraction form
    7,895.89/10,900.26 = 4,912.68/x
  3. Step 3: Cross multiply
    7,895.89x = 10,900.26 × 4,912.68
  4. Step 4: Simplify right side
    7,895.89x = 53,549,489.30
  5. Step 5: Solve for x
    x = 53,549,489.30/7,895.89
  6. Step 6: Final answer
    x = 6,781.95

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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.