Home / 19,579.51-27,019.47-11,197.63

Finding the Fourth Proportional to 19,579.51, 27,019.47 and 11,197.63

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Solution

The fourth proportional to 19,579.51, 27,019.47 and 11,197.63 is: 15,452.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.51 : 27,019.47 = 11,197.63 : x
  2. Step 2: Convert to fraction form
    19,579.51/27,019.47 = 11,197.63/x
  3. Step 3: Cross multiply
    19,579.51x = 27,019.47 × 11,197.63
  4. Step 4: Simplify right side
    19,579.51x = 302,554,027.86
  5. Step 5: Solve for x
    x = 302,554,027.86/19,579.51
  6. Step 6: Final answer
    x = 15,452.58

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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.