Home / 11,556.34-15,951.70-6,777.80

Finding the Fourth Proportional to 11,556.34, 15,951.70 and 6,777.80

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Solution

The fourth proportional to 11,556.34, 15,951.70 and 6,777.80 is: 9,355.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556.34 : 15,951.70 = 6,777.80 : x
  2. Step 2: Convert to fraction form
    11,556.34/15,951.70 = 6,777.80/x
  3. Step 3: Cross multiply
    11,556.34x = 15,951.70 × 6,777.80
  4. Step 4: Simplify right side
    11,556.34x = 108,117,432.26
  5. Step 5: Solve for x
    x = 108,117,432.26/11,556.34
  6. Step 6: Final answer
    x = 9,355.68

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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.