Home / 8,412.60-12,626.72-4,255.55

Finding the Fourth Proportional to 8,412.60, 12,626.72 and 4,255.55

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Solution

The fourth proportional to 8,412.60, 12,626.72 and 4,255.55 is: 6,387.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.60 : 12,626.72 = 4,255.55 : x
  2. Step 2: Convert to fraction form
    8,412.60/12,626.72 = 4,255.55/x
  3. Step 3: Cross multiply
    8,412.60x = 12,626.72 × 4,255.55
  4. Step 4: Simplify right side
    8,412.60x = 53,733,617.19
  5. Step 5: Solve for x
    x = 53,733,617.19/8,412.60
  6. Step 6: Final answer
    x = 6,387.28

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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.