Home / 13,427.78-20,141.69-4,662.68

Finding the Fourth Proportional to 13,427.78, 20,141.69 and 4,662.68

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Solution

The fourth proportional to 13,427.78, 20,141.69 and 4,662.68 is: 6,994.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.78 : 20,141.69 = 4,662.68 : x
  2. Step 2: Convert to fraction form
    13,427.78/20,141.69 = 4,662.68/x
  3. Step 3: Cross multiply
    13,427.78x = 20,141.69 × 4,662.68
  4. Step 4: Simplify right side
    13,427.78x = 93,914,131.11
  5. Step 5: Solve for x
    x = 93,914,131.11/13,427.78
  6. Step 6: Final answer
    x = 6,994.02

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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.