Home / 18,811.04-25,945.44-13,511.30

Finding the Fourth Proportional to 18,811.04, 25,945.44 and 13,511.30

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Solution

The fourth proportional to 18,811.04, 25,945.44 and 13,511.30 is: 18,635.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.04 : 25,945.44 = 13,511.30 : x
  2. Step 2: Convert to fraction form
    18,811.04/25,945.44 = 13,511.30/x
  3. Step 3: Cross multiply
    18,811.04x = 25,945.44 × 13,511.30
  4. Step 4: Simplify right side
    18,811.04x = 350,556,623.47
  5. Step 5: Solve for x
    x = 350,556,623.47/18,811.04
  6. Step 6: Final answer
    x = 18,635.69

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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.