Home / 12,182.16-18,273.60-4,788.48

Finding the Fourth Proportional to 12,182.16, 18,273.60 and 4,788.48

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Solution

The fourth proportional to 12,182.16, 18,273.60 and 4,788.48 is: 7,182.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.16 : 18,273.60 = 4,788.48 : x
  2. Step 2: Convert to fraction form
    12,182.16/18,273.60 = 4,788.48/x
  3. Step 3: Cross multiply
    12,182.16x = 18,273.60 × 4,788.48
  4. Step 4: Simplify right side
    12,182.16x = 87,502,768.13
  5. Step 5: Solve for x
    x = 87,502,768.13/12,182.16
  6. Step 6: Final answer
    x = 7,182.86

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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.