Home / 11,820.57-17,728.91-4,800.30

Finding the Fourth Proportional to 11,820.57, 17,728.91 and 4,800.30

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Solution

The fourth proportional to 11,820.57, 17,728.91 and 4,800.30 is: 7,199.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.57 : 17,728.91 = 4,800.30 : x
  2. Step 2: Convert to fraction form
    11,820.57/17,728.91 = 4,800.30/x
  3. Step 3: Cross multiply
    11,820.57x = 17,728.91 × 4,800.30
  4. Step 4: Simplify right side
    11,820.57x = 85,104,086.67
  5. Step 5: Solve for x
    x = 85,104,086.67/11,820.57
  6. Step 6: Final answer
    x = 7,199.66

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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.