Home / 7,965.41-10,989.70-4,427.94

Finding the Fourth Proportional to 7,965.41, 10,989.70 and 4,427.94

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Solution

The fourth proportional to 7,965.41, 10,989.70 and 4,427.94 is: 6,109.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.41 : 10,989.70 = 4,427.94 : x
  2. Step 2: Convert to fraction form
    7,965.41/10,989.70 = 4,427.94/x
  3. Step 3: Cross multiply
    7,965.41x = 10,989.70 × 4,427.94
  4. Step 4: Simplify right side
    7,965.41x = 48,661,732.22
  5. Step 5: Solve for x
    x = 48,661,732.22/7,965.41
  6. Step 6: Final answer
    x = 6,109.13

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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.