Home / 19,129.74-26,400.63-11,174.52

Finding the Fourth Proportional to 19,129.74, 26,400.63 and 11,174.52

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Solution

The fourth proportional to 19,129.74, 26,400.63 and 11,174.52 is: 15,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.74 : 26,400.63 = 11,174.52 : x
  2. Step 2: Convert to fraction form
    19,129.74/26,400.63 = 11,174.52/x
  3. Step 3: Cross multiply
    19,129.74x = 26,400.63 × 11,174.52
  4. Step 4: Simplify right side
    19,129.74x = 295,014,367.95
  5. Step 5: Solve for x
    x = 295,014,367.95/19,129.74
  6. Step 6: Final answer
    x = 15,421.77

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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.