Home / 19,083.79-26,344.74-12,720.97

Finding the Fourth Proportional to 19,083.79, 26,344.74 and 12,720.97

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Solution

The fourth proportional to 19,083.79, 26,344.74 and 12,720.97 is: 17,561.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,083.79 : 26,344.74 = 12,720.97 : x
  2. Step 2: Convert to fraction form
    19,083.79/26,344.74 = 12,720.97/x
  3. Step 3: Cross multiply
    19,083.79x = 26,344.74 × 12,720.97
  4. Step 4: Simplify right side
    19,083.79x = 335,130,647.20
  5. Step 5: Solve for x
    x = 335,130,647.20/19,083.79
  6. Step 6: Final answer
    x = 17,561.01

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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.