Home / 7,431.39-10,255.29-4,447.65

Finding the Fourth Proportional to 7,431.39, 10,255.29 and 4,447.65

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Solution

The fourth proportional to 7,431.39, 10,255.29 and 4,447.65 is: 6,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.39 : 10,255.29 = 4,447.65 : x
  2. Step 2: Convert to fraction form
    7,431.39/10,255.29 = 4,447.65/x
  3. Step 3: Cross multiply
    7,431.39x = 10,255.29 × 4,447.65
  4. Step 4: Simplify right side
    7,431.39x = 45,611,940.57
  5. Step 5: Solve for x
    x = 45,611,940.57/7,431.39
  6. Step 6: Final answer
    x = 6,137.74

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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.