Home / 19,365.20-26,712.36-11,900.24

Finding the Fourth Proportional to 19,365.20, 26,712.36 and 11,900.24

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Solution

The fourth proportional to 19,365.20, 26,712.36 and 11,900.24 is: 16,415.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,365.20 : 26,712.36 = 11,900.24 : x
  2. Step 2: Convert to fraction form
    19,365.20/26,712.36 = 11,900.24/x
  3. Step 3: Cross multiply
    19,365.20x = 26,712.36 × 11,900.24
  4. Step 4: Simplify right side
    19,365.20x = 317,883,494.97
  5. Step 5: Solve for x
    x = 317,883,494.97/19,365.20
  6. Step 6: Final answer
    x = 16,415.19

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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.