Home / 11,975.18-18,022.50-9,028.80

Finding the Fourth Proportional to 11,975.18, 18,022.50 and 9,028.80

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Solution

The fourth proportional to 11,975.18, 18,022.50 and 9,028.80 is: 13,588.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.18 : 18,022.50 = 9,028.80 : x
  2. Step 2: Convert to fraction form
    11,975.18/18,022.50 = 9,028.80/x
  3. Step 3: Cross multiply
    11,975.18x = 18,022.50 × 9,028.80
  4. Step 4: Simplify right side
    11,975.18x = 162,721,548
  5. Step 5: Solve for x
    x = 162,721,548/11,975.18
  6. Step 6: Final answer
    x = 13,588.24

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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.