Home / 13,324.79-19,956.80-11,429.39

Finding the Fourth Proportional to 13,324.79, 19,956.80 and 11,429.39

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Solution

The fourth proportional to 13,324.79, 19,956.80 and 11,429.39 is: 17,118.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.79 : 19,956.80 = 11,429.39 : x
  2. Step 2: Convert to fraction form
    13,324.79/19,956.80 = 11,429.39/x
  3. Step 3: Cross multiply
    13,324.79x = 19,956.80 × 11,429.39
  4. Step 4: Simplify right side
    13,324.79x = 228,094,128.82
  5. Step 5: Solve for x
    x = 228,094,128.82/13,324.79
  6. Step 6: Final answer
    x = 17,118.02

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1.5x scale

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.