Home / 8,858.70-12,226.35-6,730.74

Finding the Fourth Proportional to 8,858.70, 12,226.35 and 6,730.74

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Solution

The fourth proportional to 8,858.70, 12,226.35 and 6,730.74 is: 9,289.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.70 : 12,226.35 = 6,730.74 : x
  2. Step 2: Convert to fraction form
    8,858.70/12,226.35 = 6,730.74/x
  3. Step 3: Cross multiply
    8,858.70x = 12,226.35 × 6,730.74
  4. Step 4: Simplify right side
    8,858.70x = 82,292,383.00
  5. Step 5: Solve for x
    x = 82,292,383.00/8,858.70
  6. Step 6: Final answer
    x = 9,289.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.