Home / 9,358.78-12,904.62-6,376.36

Finding the Fourth Proportional to 9,358.78, 12,904.62 and 6,376.36

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Solution

The fourth proportional to 9,358.78, 12,904.62 and 6,376.36 is: 8,792.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358.78 : 12,904.62 = 6,376.36 : x
  2. Step 2: Convert to fraction form
    9,358.78/12,904.62 = 6,376.36/x
  3. Step 3: Cross multiply
    9,358.78x = 12,904.62 × 6,376.36
  4. Step 4: Simplify right side
    9,358.78x = 82,284,438.26
  5. Step 5: Solve for x
    x = 82,284,438.26/9,358.78
  6. Step 6: Final answer
    x = 8,792.22

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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.