Home / 11,021.23-15,201.75-7,040.58

Finding the Fourth Proportional to 11,021.23, 15,201.75 and 7,040.58

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Solution

The fourth proportional to 11,021.23, 15,201.75 and 7,040.58 is: 9,711.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.23 : 15,201.75 = 7,040.58 : x
  2. Step 2: Convert to fraction form
    11,021.23/15,201.75 = 7,040.58/x
  3. Step 3: Cross multiply
    11,021.23x = 15,201.75 × 7,040.58
  4. Step 4: Simplify right side
    11,021.23x = 107,029,137.02
  5. Step 5: Solve for x
    x = 107,029,137.02/11,021.23
  6. Step 6: Final answer
    x = 9,711.18

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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.