Home / 8,260.79-12,391.18-2,712.64

Finding the Fourth Proportional to 8,260.79, 12,391.18 and 2,712.64

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Solution

The fourth proportional to 8,260.79, 12,391.18 and 2,712.64 is: 4,068.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.79 : 12,391.18 = 2,712.64 : x
  2. Step 2: Convert to fraction form
    8,260.79/12,391.18 = 2,712.64/x
  3. Step 3: Cross multiply
    8,260.79x = 12,391.18 × 2,712.64
  4. Step 4: Simplify right side
    8,260.79x = 33,612,795.99
  5. Step 5: Solve for x
    x = 33,612,795.99/8,260.79
  6. Step 6: Final answer
    x = 4,068.96

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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.