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Finding the Fourth Proportional to 8,607.57, 12,913.79 and 4,449.84

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Solution

The fourth proportional to 8,607.57, 12,913.79 and 4,449.84 is: 6,676.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.57 : 12,913.79 = 4,449.84 : x
  2. Step 2: Convert to fraction form
    8,607.57/12,913.79 = 4,449.84/x
  3. Step 3: Cross multiply
    8,607.57x = 12,913.79 × 4,449.84
  4. Step 4: Simplify right side
    8,607.57x = 57,464,299.29
  5. Step 5: Solve for x
    x = 57,464,299.29/8,607.57
  6. Step 6: Final answer
    x = 6,676.02

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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.