Home / 8,412.42-12,626.40-4,255.29

Finding the Fourth Proportional to 8,412.42, 12,626.40 and 4,255.29

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Solution

The fourth proportional to 8,412.42, 12,626.40 and 4,255.29 is: 6,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.42 : 12,626.40 = 4,255.29 : x
  2. Step 2: Convert to fraction form
    8,412.42/12,626.40 = 4,255.29/x
  3. Step 3: Cross multiply
    8,412.42x = 12,626.40 × 4,255.29
  4. Step 4: Simplify right side
    8,412.42x = 53,728,993.66
  5. Step 5: Solve for x
    x = 53,728,993.66/8,412.42
  6. Step 6: Final answer
    x = 6,386.87

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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.