Home / 13,120.44-19,681.47-3,259.95

Finding the Fourth Proportional to 13,120.44, 19,681.47 and 3,259.95

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Solution

The fourth proportional to 13,120.44, 19,681.47 and 3,259.95 is: 4,890.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.44 : 19,681.47 = 3,259.95 : x
  2. Step 2: Convert to fraction form
    13,120.44/19,681.47 = 3,259.95/x
  3. Step 3: Cross multiply
    13,120.44x = 19,681.47 × 3,259.95
  4. Step 4: Simplify right side
    13,120.44x = 64,160,608.13
  5. Step 5: Solve for x
    x = 64,160,608.13/13,120.44
  6. Step 6: Final answer
    x = 4,890.13

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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.