Home / 15,879.87-23,819.34-4,193.19

Finding the Fourth Proportional to 15,879.87, 23,819.34 and 4,193.19

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Solution

The fourth proportional to 15,879.87, 23,819.34 and 4,193.19 is: 6,289.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,879.87 : 23,819.34 = 4,193.19 : x
  2. Step 2: Convert to fraction form
    15,879.87/23,819.34 = 4,193.19/x
  3. Step 3: Cross multiply
    15,879.87x = 23,819.34 × 4,193.19
  4. Step 4: Simplify right side
    15,879.87x = 99,879,018.29
  5. Step 5: Solve for x
    x = 99,879,018.29/15,879.87
  6. Step 6: Final answer
    x = 6,289.66

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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.