Home / 11,431.98-15,757.26-7,653.81

Finding the Fourth Proportional to 11,431.98, 15,757.26 and 7,653.81

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Solution

The fourth proportional to 11,431.98, 15,757.26 and 7,653.81 is: 10,549.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.98 : 15,757.26 = 7,653.81 : x
  2. Step 2: Convert to fraction form
    11,431.98/15,757.26 = 7,653.81/x
  3. Step 3: Cross multiply
    11,431.98x = 15,757.26 × 7,653.81
  4. Step 4: Simplify right side
    11,431.98x = 120,603,074.16
  5. Step 5: Solve for x
    x = 120,603,074.16/11,431.98
  6. Step 6: Final answer
    x = 10,549.62

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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.