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Finding the Fourth Proportional to 8,258.93, 12,390.29 and 3,579.72

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Solution

The fourth proportional to 8,258.93, 12,390.29 and 3,579.72 is: 5,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.93 : 12,390.29 = 3,579.72 : x
  2. Step 2: Convert to fraction form
    8,258.93/12,390.29 = 3,579.72/x
  3. Step 3: Cross multiply
    8,258.93x = 12,390.29 × 3,579.72
  4. Step 4: Simplify right side
    8,258.93x = 44,353,768.92
  5. Step 5: Solve for x
    x = 44,353,768.92/8,258.93
  6. Step 6: Final answer
    x = 5,370.40

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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.