Home / 13,412.08-20,118.12-5,514.56

Finding the Fourth Proportional to 13,412.08, 20,118.12 and 5,514.56

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Solution

The fourth proportional to 13,412.08, 20,118.12 and 5,514.56 is: 8,271.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.08 : 20,118.12 = 5,514.56 : x
  2. Step 2: Convert to fraction form
    13,412.08/20,118.12 = 5,514.56/x
  3. Step 3: Cross multiply
    13,412.08x = 20,118.12 × 5,514.56
  4. Step 4: Simplify right side
    13,412.08x = 110,942,579.83
  5. Step 5: Solve for x
    x = 110,942,579.83/13,412.08
  6. Step 6: Final answer
    x = 8,271.84

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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.