Home / 12,556.03-18,799.44-8,390.30

Finding the Fourth Proportional to 12,556.03, 18,799.44 and 8,390.30

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Solution

The fourth proportional to 12,556.03, 18,799.44 and 8,390.30 is: 12,562.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.03 : 18,799.44 = 8,390.30 : x
  2. Step 2: Convert to fraction form
    12,556.03/18,799.44 = 8,390.30/x
  3. Step 3: Cross multiply
    12,556.03x = 18,799.44 × 8,390.30
  4. Step 4: Simplify right side
    12,556.03x = 157,732,941.43
  5. Step 5: Solve for x
    x = 157,732,941.43/12,556.03
  6. Step 6: Final answer
    x = 12,562.33

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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.