Home / 13,664.36-20,512.74-11,500.04

Finding the Fourth Proportional to 13,664.36, 20,512.74 and 11,500.04

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Solution

The fourth proportional to 13,664.36, 20,512.74 and 11,500.04 is: 17,263.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.36 : 20,512.74 = 11,500.04 : x
  2. Step 2: Convert to fraction form
    13,664.36/20,512.74 = 11,500.04/x
  3. Step 3: Cross multiply
    13,664.36x = 20,512.74 × 11,500.04
  4. Step 4: Simplify right side
    13,664.36x = 235,897,330.51
  5. Step 5: Solve for x
    x = 235,897,330.51/13,664.36
  6. Step 6: Final answer
    x = 17,263.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.