Home / 9,431.56-13,014.91-5,181.79

Finding the Fourth Proportional to 9,431.56, 13,014.91 and 5,181.79

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Solution

The fourth proportional to 9,431.56, 13,014.91 and 5,181.79 is: 7,150.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.56 : 13,014.91 = 5,181.79 : x
  2. Step 2: Convert to fraction form
    9,431.56/13,014.91 = 5,181.79/x
  3. Step 3: Cross multiply
    9,431.56x = 13,014.91 × 5,181.79
  4. Step 4: Simplify right side
    9,431.56x = 67,440,530.49
  5. Step 5: Solve for x
    x = 67,440,530.49/9,431.56
  6. Step 6: Final answer
    x = 7,150.52

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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.