Home / 8,454.78-12,681.81-3,260.34

Finding the Fourth Proportional to 8,454.78, 12,681.81 and 3,260.34

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Solution

The fourth proportional to 8,454.78, 12,681.81 and 3,260.34 is: 4,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.78 : 12,681.81 = 3,260.34 : x
  2. Step 2: Convert to fraction form
    8,454.78/12,681.81 = 3,260.34/x
  3. Step 3: Cross multiply
    8,454.78x = 12,681.81 × 3,260.34
  4. Step 4: Simplify right side
    8,454.78x = 41,347,012.42
  5. Step 5: Solve for x
    x = 41,347,012.42/8,454.78
  6. Step 6: Final answer
    x = 4,890.37

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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.