Home / 12,786.12-19,166.22-4,984.20

Finding the Fourth Proportional to 12,786.12, 19,166.22 and 4,984.20

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Solution

The fourth proportional to 12,786.12, 19,166.22 and 4,984.20 is: 7,471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786.12 : 19,166.22 = 4,984.20 : x
  2. Step 2: Convert to fraction form
    12,786.12/19,166.22 = 4,984.20/x
  3. Step 3: Cross multiply
    12,786.12x = 19,166.22 × 4,984.20
  4. Step 4: Simplify right side
    12,786.12x = 95,528,273.72
  5. Step 5: Solve for x
    x = 95,528,273.72/12,786.12
  6. Step 6: Final answer
    x = 7,471.25

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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.