Home / 9,689.49-13,370.81-5,912.33

Finding the Fourth Proportional to 9,689.49, 13,370.81 and 5,912.33

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Solution

The fourth proportional to 9,689.49, 13,370.81 and 5,912.33 is: 8,158.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,689.49 : 13,370.81 = 5,912.33 : x
  2. Step 2: Convert to fraction form
    9,689.49/13,370.81 = 5,912.33/x
  3. Step 3: Cross multiply
    9,689.49x = 13,370.81 × 5,912.33
  4. Step 4: Simplify right side
    9,689.49x = 79,052,544.67
  5. Step 5: Solve for x
    x = 79,052,544.67/9,689.49
  6. Step 6: Final answer
    x = 8,158.59

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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.