Home / 8,631.06-12,946.77-2,788.26

Finding the Fourth Proportional to 8,631.06, 12,946.77 and 2,788.26

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Solution

The fourth proportional to 8,631.06, 12,946.77 and 2,788.26 is: 4,182.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.06 : 12,946.77 = 2,788.26 : x
  2. Step 2: Convert to fraction form
    8,631.06/12,946.77 = 2,788.26/x
  3. Step 3: Cross multiply
    8,631.06x = 12,946.77 × 2,788.26
  4. Step 4: Simplify right side
    8,631.06x = 36,098,960.92
  5. Step 5: Solve for x
    x = 36,098,960.92/8,631.06
  6. Step 6: Final answer
    x = 4,182.45

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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.