Home / 19,561.08-26,984.25-12,845.73

Finding the Fourth Proportional to 19,561.08, 26,984.25 and 12,845.73

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Solution

The fourth proportional to 19,561.08, 26,984.25 and 12,845.73 is: 17,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.08 : 26,984.25 = 12,845.73 : x
  2. Step 2: Convert to fraction form
    19,561.08/26,984.25 = 12,845.73/x
  3. Step 3: Cross multiply
    19,561.08x = 26,984.25 × 12,845.73
  4. Step 4: Simplify right side
    19,561.08x = 346,632,389.75
  5. Step 5: Solve for x
    x = 346,632,389.75/19,561.08
  6. Step 6: Final answer
    x = 17,720.51

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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.