Home / 8,581.68-11,835.72-5,786.64

Finding the Fourth Proportional to 8,581.68, 11,835.72 and 5,786.64

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Solution

The fourth proportional to 8,581.68, 11,835.72 and 5,786.64 is: 7,980.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.68 : 11,835.72 = 5,786.64 : x
  2. Step 2: Convert to fraction form
    8,581.68/11,835.72 = 5,786.64/x
  3. Step 3: Cross multiply
    8,581.68x = 11,835.72 × 5,786.64
  4. Step 4: Simplify right side
    8,581.68x = 68,489,050.78
  5. Step 5: Solve for x
    x = 68,489,050.78/8,581.68
  6. Step 6: Final answer
    x = 7,980.84

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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.