Home / 13,135.61-19,706.00-3,775.68

Finding the Fourth Proportional to 13,135.61, 19,706.00 and 3,775.68

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Solution

The fourth proportional to 13,135.61, 19,706.00 and 3,775.68 is: 5,664.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.61 : 19,706.00 = 3,775.68 : x
  2. Step 2: Convert to fraction form
    13,135.61/19,706.00 = 3,775.68/x
  3. Step 3: Cross multiply
    13,135.61x = 19,706.00 × 3,775.68
  4. Step 4: Simplify right side
    13,135.61x = 74,403,531.20
  5. Step 5: Solve for x
    x = 74,403,531.20/13,135.61
  6. Step 6: Final answer
    x = 5,664.26

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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.