Home / 19,709.49-27,194.18-12,645.48

Finding the Fourth Proportional to 19,709.49, 27,194.18 and 12,645.48

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Solution

The fourth proportional to 19,709.49, 27,194.18 and 12,645.48 is: 17,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,709.49 : 27,194.18 = 12,645.48 : x
  2. Step 2: Convert to fraction form
    19,709.49/27,194.18 = 12,645.48/x
  3. Step 3: Cross multiply
    19,709.49x = 27,194.18 × 12,645.48
  4. Step 4: Simplify right side
    19,709.49x = 343,883,396.08
  5. Step 5: Solve for x
    x = 343,883,396.08/19,709.49
  6. Step 6: Final answer
    x = 17,447.60

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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.