Home / 8,451.60-12,680.08-4,069.36

Finding the Fourth Proportional to 8,451.60, 12,680.08 and 4,069.36

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Solution

The fourth proportional to 8,451.60, 12,680.08 and 4,069.36 is: 6,105.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.60 : 12,680.08 = 4,069.36 : x
  2. Step 2: Convert to fraction form
    8,451.60/12,680.08 = 4,069.36/x
  3. Step 3: Cross multiply
    8,451.60x = 12,680.08 × 4,069.36
  4. Step 4: Simplify right side
    8,451.60x = 51,599,810.35
  5. Step 5: Solve for x
    x = 51,599,810.35/8,451.60
  6. Step 6: Final answer
    x = 6,105.33

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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.