Home / 8,283.36-12,416.40-6,188.64

Finding the Fourth Proportional to 8,283.36, 12,416.40 and 6,188.64

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Solution

The fourth proportional to 8,283.36, 12,416.40 and 6,188.64 is: 9,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,283.36 : 12,416.40 = 6,188.64 : x
  2. Step 2: Convert to fraction form
    8,283.36/12,416.40 = 6,188.64/x
  3. Step 3: Cross multiply
    8,283.36x = 12,416.40 × 6,188.64
  4. Step 4: Simplify right side
    8,283.36x = 76,840,629.70
  5. Step 5: Solve for x
    x = 76,840,629.70/8,283.36
  6. Step 6: Final answer
    x = 9,276.50

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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.