Home / 13,531.94-18,674.41-7,564.60

Finding the Fourth Proportional to 13,531.94, 18,674.41 and 7,564.60

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Solution

The fourth proportional to 13,531.94, 18,674.41 and 7,564.60 is: 10,439.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.94 : 18,674.41 = 7,564.60 : x
  2. Step 2: Convert to fraction form
    13,531.94/18,674.41 = 7,564.60/x
  3. Step 3: Cross multiply
    13,531.94x = 18,674.41 × 7,564.60
  4. Step 4: Simplify right side
    13,531.94x = 141,264,441.89
  5. Step 5: Solve for x
    x = 141,264,441.89/13,531.94
  6. Step 6: Final answer
    x = 10,439.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.