Home / 19,129.70-26,394.87-11,168.31

Finding the Fourth Proportional to 19,129.70, 26,394.87 and 11,168.31

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Solution

The fourth proportional to 19,129.70, 26,394.87 and 11,168.31 is: 15,409.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.70 : 26,394.87 = 11,168.31 : x
  2. Step 2: Convert to fraction form
    19,129.70/26,394.87 = 11,168.31/x
  3. Step 3: Cross multiply
    19,129.70x = 26,394.87 × 11,168.31
  4. Step 4: Simplify right side
    19,129.70x = 294,786,090.57
  5. Step 5: Solve for x
    x = 294,786,090.57/19,129.70
  6. Step 6: Final answer
    x = 15,409.87

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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.