Home / 13,160.25-19,743.80-3,926.25

Finding the Fourth Proportional to 13,160.25, 19,743.80 and 3,926.25

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Solution

The fourth proportional to 13,160.25, 19,743.80 and 3,926.25 is: 5,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.25 : 19,743.80 = 3,926.25 : x
  2. Step 2: Convert to fraction form
    13,160.25/19,743.80 = 3,926.25/x
  3. Step 3: Cross multiply
    13,160.25x = 19,743.80 × 3,926.25
  4. Step 4: Simplify right side
    13,160.25x = 77,519,075.12
  5. Step 5: Solve for x
    x = 77,519,075.12/13,160.25
  6. Step 6: Final answer
    x = 5,890.40

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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.