Home / 12,273.72-16,938.40-7,240.89

Finding the Fourth Proportional to 12,273.72, 16,938.40 and 7,240.89

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Solution

The fourth proportional to 12,273.72, 16,938.40 and 7,240.89 is: 9,992.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,273.72 : 16,938.40 = 7,240.89 : x
  2. Step 2: Convert to fraction form
    12,273.72/16,938.40 = 7,240.89/x
  3. Step 3: Cross multiply
    12,273.72x = 16,938.40 × 7,240.89
  4. Step 4: Simplify right side
    12,273.72x = 122,649,073.07
  5. Step 5: Solve for x
    x = 122,649,073.07/12,273.72
  6. Step 6: Final answer
    x = 9,992.82

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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.