Home / 7,915.34-11,868.63-3,238.64

Finding the Fourth Proportional to 7,915.34, 11,868.63 and 3,238.64

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Solution

The fourth proportional to 7,915.34, 11,868.63 and 3,238.64 is: 4,856.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.34 : 11,868.63 = 3,238.64 : x
  2. Step 2: Convert to fraction form
    7,915.34/11,868.63 = 3,238.64/x
  3. Step 3: Cross multiply
    7,915.34x = 11,868.63 × 3,238.64
  4. Step 4: Simplify right side
    7,915.34x = 38,438,144.33
  5. Step 5: Solve for x
    x = 38,438,144.33/7,915.34
  6. Step 6: Final answer
    x = 4,856.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.