Home / 8,320.21-12,480.50-2,774.00

Finding the Fourth Proportional to 8,320.21, 12,480.50 and 2,774.00

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Solution

The fourth proportional to 8,320.21, 12,480.50 and 2,774.00 is: 4,161.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.21 : 12,480.50 = 2,774.00 : x
  2. Step 2: Convert to fraction form
    8,320.21/12,480.50 = 2,774.00/x
  3. Step 3: Cross multiply
    8,320.21x = 12,480.50 × 2,774.00
  4. Step 4: Simplify right side
    8,320.21x = 34,620,945.14
  5. Step 5: Solve for x
    x = 34,620,945.14/8,320.21
  6. Step 6: Final answer
    x = 4,161.07

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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.