Home / 11,286.93-15,570.79-7,309.32

Finding the Fourth Proportional to 11,286.93, 15,570.79 and 7,309.32

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Solution

The fourth proportional to 11,286.93, 15,570.79 and 7,309.32 is: 10,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.93 : 15,570.79 = 7,309.32 : x
  2. Step 2: Convert to fraction form
    11,286.93/15,570.79 = 7,309.32/x
  3. Step 3: Cross multiply
    11,286.93x = 15,570.79 × 7,309.32
  4. Step 4: Simplify right side
    11,286.93x = 113,811,868.49
  5. Step 5: Solve for x
    x = 113,811,868.49/11,286.93
  6. Step 6: Final answer
    x = 10,083.51

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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.