Home / 10,514.51-15,771.81-3,119.02

Finding the Fourth Proportional to 10,514.51, 15,771.81 and 3,119.02

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Solution

The fourth proportional to 10,514.51, 15,771.81 and 3,119.02 is: 4,678.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,514.51 : 15,771.81 = 3,119.02 : x
  2. Step 2: Convert to fraction form
    10,514.51/15,771.81 = 3,119.02/x
  3. Step 3: Cross multiply
    10,514.51x = 15,771.81 × 3,119.02
  4. Step 4: Simplify right side
    10,514.51x = 49,192,563.09
  5. Step 5: Solve for x
    x = 49,192,563.09/10,514.51
  6. Step 6: Final answer
    x = 4,678.54

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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.