Home / 13,621.36-18,784.92-8,584.24

Finding the Fourth Proportional to 13,621.36, 18,784.92 and 8,584.24

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Solution

The fourth proportional to 13,621.36, 18,784.92 and 8,584.24 is: 11,838.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.36 : 18,784.92 = 8,584.24 : x
  2. Step 2: Convert to fraction form
    13,621.36/18,784.92 = 8,584.24/x
  3. Step 3: Cross multiply
    13,621.36x = 18,784.92 × 8,584.24
  4. Step 4: Simplify right side
    13,621.36x = 161,254,261.66
  5. Step 5: Solve for x
    x = 161,254,261.66/13,621.36
  6. Step 6: Final answer
    x = 11,838.34

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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.