Home / 11,029.56-15,222.60-8,215.68

Finding the Fourth Proportional to 11,029.56, 15,222.60 and 8,215.68

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Solution

The fourth proportional to 11,029.56, 15,222.60 and 8,215.68 is: 11,338.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,029.56 : 15,222.60 = 8,215.68 : x
  2. Step 2: Convert to fraction form
    11,029.56/15,222.60 = 8,215.68/x
  3. Step 3: Cross multiply
    11,029.56x = 15,222.60 × 8,215.68
  4. Step 4: Simplify right side
    11,029.56x = 125,064,010.37
  5. Step 5: Solve for x
    x = 125,064,010.37/11,029.56
  6. Step 6: Final answer
    x = 11,338.98

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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.