Home / 19,372.49-26,727.15-12,661.99

Finding the Fourth Proportional to 19,372.49, 26,727.15 and 12,661.99

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Solution

The fourth proportional to 19,372.49, 26,727.15 and 12,661.99 is: 17,469.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,372.49 : 26,727.15 = 12,661.99 : x
  2. Step 2: Convert to fraction form
    19,372.49/26,727.15 = 12,661.99/x
  3. Step 3: Cross multiply
    19,372.49x = 26,727.15 × 12,661.99
  4. Step 4: Simplify right side
    19,372.49x = 338,418,836.58
  5. Step 5: Solve for x
    x = 338,418,836.58/19,372.49
  6. Step 6: Final answer
    x = 17,469.05

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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.