Home / 19,539.09-26,963.79-11,585.09

Finding the Fourth Proportional to 19,539.09, 26,963.79 and 11,585.09

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Solution

The fourth proportional to 19,539.09, 26,963.79 and 11,585.09 is: 15,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.09 : 26,963.79 = 11,585.09 : x
  2. Step 2: Convert to fraction form
    19,539.09/26,963.79 = 11,585.09/x
  3. Step 3: Cross multiply
    19,539.09x = 26,963.79 × 11,585.09
  4. Step 4: Simplify right side
    19,539.09x = 312,377,957.86
  5. Step 5: Solve for x
    x = 312,377,957.86/19,539.09
  6. Step 6: Final answer
    x = 15,987.33

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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.