Home / 18,482.54-27,714.92-12,938.49

Finding the Fourth Proportional to 18,482.54, 27,714.92 and 12,938.49

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Solution

The fourth proportional to 18,482.54, 27,714.92 and 12,938.49 is: 19,401.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.54 : 27,714.92 = 12,938.49 : x
  2. Step 2: Convert to fraction form
    18,482.54/27,714.92 = 12,938.49/x
  3. Step 3: Cross multiply
    18,482.54x = 27,714.92 × 12,938.49
  4. Step 4: Simplify right side
    18,482.54x = 358,589,150.58
  5. Step 5: Solve for x
    x = 358,589,150.58/18,482.54
  6. Step 6: Final answer
    x = 19,401.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.