Home / 19,218.88-26,528.88-11,665.36

Finding the Fourth Proportional to 19,218.88, 26,528.88 and 11,665.36

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Solution

The fourth proportional to 19,218.88, 26,528.88 and 11,665.36 is: 16,102.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.88 : 26,528.88 = 11,665.36 : x
  2. Step 2: Convert to fraction form
    19,218.88/26,528.88 = 11,665.36/x
  3. Step 3: Cross multiply
    19,218.88x = 26,528.88 × 11,665.36
  4. Step 4: Simplify right side
    19,218.88x = 309,468,935.60
  5. Step 5: Solve for x
    x = 309,468,935.60/19,218.88
  6. Step 6: Final answer
    x = 16,102.34

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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.