Home / 12,711.02-19,066.70-3,945.38

Finding the Fourth Proportional to 12,711.02, 19,066.70 and 3,945.38

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Solution

The fourth proportional to 12,711.02, 19,066.70 and 3,945.38 is: 5,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.02 : 19,066.70 = 3,945.38 : x
  2. Step 2: Convert to fraction form
    12,711.02/19,066.70 = 3,945.38/x
  3. Step 3: Cross multiply
    12,711.02x = 19,066.70 × 3,945.38
  4. Step 4: Simplify right side
    12,711.02x = 75,225,291.38
  5. Step 5: Solve for x
    x = 75,225,291.38/12,711.02
  6. Step 6: Final answer
    x = 5,918.12

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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.