Home / 10,289.96-15,436.41-3,174.80

Finding the Fourth Proportional to 10,289.96, 15,436.41 and 3,174.80

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Solution

The fourth proportional to 10,289.96, 15,436.41 and 3,174.80 is: 4,762.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.96 : 15,436.41 = 3,174.80 : x
  2. Step 2: Convert to fraction form
    10,289.96/15,436.41 = 3,174.80/x
  3. Step 3: Cross multiply
    10,289.96x = 15,436.41 × 3,174.80
  4. Step 4: Simplify right side
    10,289.96x = 49,007,514.47
  5. Step 5: Solve for x
    x = 49,007,514.47/10,289.96
  6. Step 6: Final answer
    x = 4,762.65

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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.