Home / 18,741.87-25,828.20-13,427.46

Finding the Fourth Proportional to 18,741.87, 25,828.20 and 13,427.46

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Solution

The fourth proportional to 18,741.87, 25,828.20 and 13,427.46 is: 18,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.87 : 25,828.20 = 13,427.46 : x
  2. Step 2: Convert to fraction form
    18,741.87/25,828.20 = 13,427.46/x
  3. Step 3: Cross multiply
    18,741.87x = 25,828.20 × 13,427.46
  4. Step 4: Simplify right side
    18,741.87x = 346,807,122.37
  5. Step 5: Solve for x
    x = 346,807,122.37/18,741.87
  6. Step 6: Final answer
    x = 18,504.40

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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.