Home / 19,276.87-28,918.19-6,129.67

Finding the Fourth Proportional to 19,276.87, 28,918.19 and 6,129.67

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Solution

The fourth proportional to 19,276.87, 28,918.19 and 6,129.67 is: 9,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.87 : 28,918.19 = 6,129.67 : x
  2. Step 2: Convert to fraction form
    19,276.87/28,918.19 = 6,129.67/x
  3. Step 3: Cross multiply
    19,276.87x = 28,918.19 × 6,129.67
  4. Step 4: Simplify right side
    19,276.87x = 177,259,026.33
  5. Step 5: Solve for x
    x = 177,259,026.33/19,276.87
  6. Step 6: Final answer
    x = 9,195.42

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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.