Home / 13,984.64-19,301.28-8,396

Finding the Fourth Proportional to 13,984.64, 19,301.28 and 8,396

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Solution

The fourth proportional to 13,984.64, 19,301.28 and 8,396 is: 11,587.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.64 : 19,301.28 = 8,396 : x
  2. Step 2: Convert to fraction form
    13,984.64/19,301.28 = 8,396/x
  3. Step 3: Cross multiply
    13,984.64x = 19,301.28 × 8,396
  4. Step 4: Simplify right side
    13,984.64x = 162,053,546.88
  5. Step 5: Solve for x
    x = 162,053,546.88/13,984.64
  6. Step 6: Final answer
    x = 11,587.97

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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.