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Finding the Fourth Proportional to 6,515.15, 8,982.83 and 4,415.63

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Solution

The fourth proportional to 6,515.15, 8,982.83 and 4,415.63 is: 6,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.15 : 8,982.83 = 4,415.63 : x
  2. Step 2: Convert to fraction form
    6,515.15/8,982.83 = 4,415.63/x
  3. Step 3: Cross multiply
    6,515.15x = 8,982.83 × 4,415.63
  4. Step 4: Simplify right side
    6,515.15x = 39,664,819.76
  5. Step 5: Solve for x
    x = 39,664,819.76/6,515.15
  6. Step 6: Final answer
    x = 6,088.09

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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.