Home / 15,620.40-21,556.05-8,546.80

Finding the Fourth Proportional to 15,620.40, 21,556.05 and 8,546.80

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Solution

The fourth proportional to 15,620.40, 21,556.05 and 8,546.80 is: 11,794.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.40 : 21,556.05 = 8,546.80 : x
  2. Step 2: Convert to fraction form
    15,620.40/21,556.05 = 8,546.80/x
  3. Step 3: Cross multiply
    15,620.40x = 21,556.05 × 8,546.80
  4. Step 4: Simplify right side
    15,620.40x = 184,235,248.14
  5. Step 5: Solve for x
    x = 184,235,248.14/15,620.40
  6. Step 6: Final answer
    x = 11,794.53

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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.