Home / 8,905.70-12,290.23-4,926.75

Finding the Fourth Proportional to 8,905.70, 12,290.23 and 4,926.75

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Solution

The fourth proportional to 8,905.70, 12,290.23 and 4,926.75 is: 6,799.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.70 : 12,290.23 = 4,926.75 : x
  2. Step 2: Convert to fraction form
    8,905.70/12,290.23 = 4,926.75/x
  3. Step 3: Cross multiply
    8,905.70x = 12,290.23 × 4,926.75
  4. Step 4: Simplify right side
    8,905.70x = 60,550,850.72
  5. Step 5: Solve for x
    x = 60,550,850.72/8,905.70
  6. Step 6: Final answer
    x = 6,799.11

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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.