Home / 12,867.37-19,287.66-4,975.30

Finding the Fourth Proportional to 12,867.37, 19,287.66 and 4,975.30

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Solution

The fourth proportional to 12,867.37, 19,287.66 and 4,975.30 is: 7,457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.37 : 19,287.66 = 4,975.30 : x
  2. Step 2: Convert to fraction form
    12,867.37/19,287.66 = 4,975.30/x
  3. Step 3: Cross multiply
    12,867.37x = 19,287.66 × 4,975.30
  4. Step 4: Simplify right side
    12,867.37x = 95,961,937.56
  5. Step 5: Solve for x
    x = 95,961,937.56/12,867.37
  6. Step 6: Final answer
    x = 7,457.78

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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.