Home / 18,678.60-28,016.28-6,194.54

Finding the Fourth Proportional to 18,678.60, 28,016.28 and 6,194.54

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Solution

The fourth proportional to 18,678.60, 28,016.28 and 6,194.54 is: 9,291.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.60 : 28,016.28 = 6,194.54 : x
  2. Step 2: Convert to fraction form
    18,678.60/28,016.28 = 6,194.54/x
  3. Step 3: Cross multiply
    18,678.60x = 28,016.28 × 6,194.54
  4. Step 4: Simplify right side
    18,678.60x = 173,548,037.15
  5. Step 5: Solve for x
    x = 173,548,037.15/18,678.60
  6. Step 6: Final answer
    x = 9,291.28

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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.