Home / 19,078.88-26,329.89-11,120.63

Finding the Fourth Proportional to 19,078.88, 26,329.89 and 11,120.63

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Solution

The fourth proportional to 19,078.88, 26,329.89 and 11,120.63 is: 15,347.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.88 : 26,329.89 = 11,120.63 : x
  2. Step 2: Convert to fraction form
    19,078.88/26,329.89 = 11,120.63/x
  3. Step 3: Cross multiply
    19,078.88x = 26,329.89 × 11,120.63
  4. Step 4: Simplify right side
    19,078.88x = 292,804,964.63
  5. Step 5: Solve for x
    x = 292,804,964.63/19,078.88
  6. Step 6: Final answer
    x = 15,347.07

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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.