Home / 11,289.40-16,938.55-8,173.33

Finding the Fourth Proportional to 11,289.40, 16,938.55 and 8,173.33

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Solution

The fourth proportional to 11,289.40, 16,938.55 and 8,173.33 is: 12,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.40 : 16,938.55 = 8,173.33 : x
  2. Step 2: Convert to fraction form
    11,289.40/16,938.55 = 8,173.33/x
  3. Step 3: Cross multiply
    11,289.40x = 16,938.55 × 8,173.33
  4. Step 4: Simplify right side
    11,289.40x = 138,444,326.74
  5. Step 5: Solve for x
    x = 138,444,326.74/11,289.40
  6. Step 6: Final answer
    x = 12,263.22

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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.