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Finding the Fourth Proportional to 8,632.84, 12,946.50 and 2,788.08

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Solution

The fourth proportional to 8,632.84, 12,946.50 and 2,788.08 is: 4,181.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.84 : 12,946.50 = 2,788.08 : x
  2. Step 2: Convert to fraction form
    8,632.84/12,946.50 = 2,788.08/x
  3. Step 3: Cross multiply
    8,632.84x = 12,946.50 × 2,788.08
  4. Step 4: Simplify right side
    8,632.84x = 36,095,877.72
  5. Step 5: Solve for x
    x = 36,095,877.72/8,632.84
  6. Step 6: Final answer
    x = 4,181.23

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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.