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Finding the Fourth Proportional to 8,494.78, 12,732.55 and 4,325.99

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Solution

The fourth proportional to 8,494.78, 12,732.55 and 4,325.99 is: 6,484.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,494.78 : 12,732.55 = 4,325.99 : x
  2. Step 2: Convert to fraction form
    8,494.78/12,732.55 = 4,325.99/x
  3. Step 3: Cross multiply
    8,494.78x = 12,732.55 × 4,325.99
  4. Step 4: Simplify right side
    8,494.78x = 55,080,809.50
  5. Step 5: Solve for x
    x = 55,080,809.50/8,494.78
  6. Step 6: Final answer
    x = 6,484.08

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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.