Home / 14,786.60-20,404.68-8,412.32

Finding the Fourth Proportional to 14,786.60, 20,404.68 and 8,412.32

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Solution

The fourth proportional to 14,786.60, 20,404.68 and 8,412.32 is: 11,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,786.60 : 20,404.68 = 8,412.32 : x
  2. Step 2: Convert to fraction form
    14,786.60/20,404.68 = 8,412.32/x
  3. Step 3: Cross multiply
    14,786.60x = 20,404.68 × 8,412.32
  4. Step 4: Simplify right side
    14,786.60x = 171,650,697.66
  5. Step 5: Solve for x
    x = 171,650,697.66/14,786.60
  6. Step 6: Final answer
    x = 11,608.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.