Home / 8,258.78-12,392.42-5,487.36

Finding the Fourth Proportional to 8,258.78, 12,392.42 and 5,487.36

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Solution

The fourth proportional to 8,258.78, 12,392.42 and 5,487.36 is: 8,233.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.78 : 12,392.42 = 5,487.36 : x
  2. Step 2: Convert to fraction form
    8,258.78/12,392.42 = 5,487.36/x
  3. Step 3: Cross multiply
    8,258.78x = 12,392.42 × 5,487.36
  4. Step 4: Simplify right side
    8,258.78x = 68,001,669.81
  5. Step 5: Solve for x
    x = 68,001,669.81/8,258.78
  6. Step 6: Final answer
    x = 8,233.86

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1.5x scale

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.