Home / 8,890.93-12,269.30-4,912

Finding the Fourth Proportional to 8,890.93, 12,269.30 and 4,912

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Solution

The fourth proportional to 8,890.93, 12,269.30 and 4,912 is: 6,778.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.93 : 12,269.30 = 4,912 : x
  2. Step 2: Convert to fraction form
    8,890.93/12,269.30 = 4,912/x
  3. Step 3: Cross multiply
    8,890.93x = 12,269.30 × 4,912
  4. Step 4: Simplify right side
    8,890.93x = 60,266,801.60
  5. Step 5: Solve for x
    x = 60,266,801.60/8,890.93
  6. Step 6: Final answer
    x = 6,778.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.