Home / 19,144.37-28,714.27-5,105.45

Finding the Fourth Proportional to 19,144.37, 28,714.27 and 5,105.45

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Solution

The fourth proportional to 19,144.37, 28,714.27 and 5,105.45 is: 7,657.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144.37 : 28,714.27 = 5,105.45 : x
  2. Step 2: Convert to fraction form
    19,144.37/28,714.27 = 5,105.45/x
  3. Step 3: Cross multiply
    19,144.37x = 28,714.27 × 5,105.45
  4. Step 4: Simplify right side
    19,144.37x = 146,599,269.77
  5. Step 5: Solve for x
    x = 146,599,269.77/19,144.37
  6. Step 6: Final answer
    x = 7,657.57

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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.