Home / 19,738.85-27,257.81-12,677.58

Finding the Fourth Proportional to 19,738.85, 27,257.81 and 12,677.58

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Solution

The fourth proportional to 19,738.85, 27,257.81 and 12,677.58 is: 17,506.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.85 : 27,257.81 = 12,677.58 : x
  2. Step 2: Convert to fraction form
    19,738.85/27,257.81 = 12,677.58/x
  3. Step 3: Cross multiply
    19,738.85x = 27,257.81 × 12,677.58
  4. Step 4: Simplify right side
    19,738.85x = 345,563,003.51
  5. Step 5: Solve for x
    x = 345,563,003.51/19,738.85
  6. Step 6: Final answer
    x = 17,506.74

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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.