Home / 11,938.95-17,911.43-4,539.38

Finding the Fourth Proportional to 11,938.95, 17,911.43 and 4,539.38

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Solution

The fourth proportional to 11,938.95, 17,911.43 and 4,539.38 is: 6,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.95 : 17,911.43 = 4,539.38 : x
  2. Step 2: Convert to fraction form
    11,938.95/17,911.43 = 4,539.38/x
  3. Step 3: Cross multiply
    11,938.95x = 17,911.43 × 4,539.38
  4. Step 4: Simplify right side
    11,938.95x = 81,306,674.86
  5. Step 5: Solve for x
    x = 81,306,674.86/11,938.95
  6. Step 6: Final answer
    x = 6,810.20

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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.