Home / 8,310.79-12,468.60-3,117.07

Finding the Fourth Proportional to 8,310.79, 12,468.60 and 3,117.07

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Solution

The fourth proportional to 8,310.79, 12,468.60 and 3,117.07 is: 4,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.79 : 12,468.60 = 3,117.07 : x
  2. Step 2: Convert to fraction form
    8,310.79/12,468.60 = 3,117.07/x
  3. Step 3: Cross multiply
    8,310.79x = 12,468.60 × 3,117.07
  4. Step 4: Simplify right side
    8,310.79x = 38,865,499.00
  5. Step 5: Solve for x
    x = 38,865,499.00/8,310.79
  6. Step 6: Final answer
    x = 4,676.51

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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.