Home / 9,438.78-13,025.46-5,247

Finding the Fourth Proportional to 9,438.78, 13,025.46 and 5,247

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Solution

The fourth proportional to 9,438.78, 13,025.46 and 5,247 is: 7,240.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.78 : 13,025.46 = 5,247 : x
  2. Step 2: Convert to fraction form
    9,438.78/13,025.46 = 5,247/x
  3. Step 3: Cross multiply
    9,438.78x = 13,025.46 × 5,247
  4. Step 4: Simplify right side
    9,438.78x = 68,344,588.62
  5. Step 5: Solve for x
    x = 68,344,588.62/9,438.78
  6. Step 6: Final answer
    x = 7,240.83

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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.