Home / 15,397.26-21,247.83-8,682.77

Finding the Fourth Proportional to 15,397.26, 21,247.83 and 8,682.77

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Solution

The fourth proportional to 15,397.26, 21,247.83 and 8,682.77 is: 11,982.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397.26 : 21,247.83 = 8,682.77 : x
  2. Step 2: Convert to fraction form
    15,397.26/21,247.83 = 8,682.77/x
  3. Step 3: Cross multiply
    15,397.26x = 21,247.83 × 8,682.77
  4. Step 4: Simplify right side
    15,397.26x = 184,489,914.65
  5. Step 5: Solve for x
    x = 184,489,914.65/15,397.26
  6. Step 6: Final answer
    x = 11,982.00

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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.