Home / 8,961.22-12,366.90-4,982.39

Finding the Fourth Proportional to 8,961.22, 12,366.90 and 4,982.39

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Solution

The fourth proportional to 8,961.22, 12,366.90 and 4,982.39 is: 6,875.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.22 : 12,366.90 = 4,982.39 : x
  2. Step 2: Convert to fraction form
    8,961.22/12,366.90 = 4,982.39/x
  3. Step 3: Cross multiply
    8,961.22x = 12,366.90 × 4,982.39
  4. Step 4: Simplify right side
    8,961.22x = 61,616,749.81
  5. Step 5: Solve for x
    x = 61,616,749.81/8,961.22
  6. Step 6: Final answer
    x = 6,875.94

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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.