Home / 8,631.53-12,948.53-3,083.70

Finding the Fourth Proportional to 8,631.53, 12,948.53 and 3,083.70

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Solution

The fourth proportional to 8,631.53, 12,948.53 and 3,083.70 is: 4,626.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.53 : 12,948.53 = 3,083.70 : x
  2. Step 2: Convert to fraction form
    8,631.53/12,948.53 = 3,083.70/x
  3. Step 3: Cross multiply
    8,631.53x = 12,948.53 × 3,083.70
  4. Step 4: Simplify right side
    8,631.53x = 39,929,415.10
  5. Step 5: Solve for x
    x = 39,929,415.10/8,631.53
  6. Step 6: Final answer
    x = 4,626.00

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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.