Home / 13,485.67-18,611.03-7,517.33

Finding the Fourth Proportional to 13,485.67, 18,611.03 and 7,517.33

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Solution

The fourth proportional to 13,485.67, 18,611.03 and 7,517.33 is: 10,374.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.67 : 18,611.03 = 7,517.33 : x
  2. Step 2: Convert to fraction form
    13,485.67/18,611.03 = 7,517.33/x
  3. Step 3: Cross multiply
    13,485.67x = 18,611.03 × 7,517.33
  4. Step 4: Simplify right side
    13,485.67x = 139,905,319.47
  5. Step 5: Solve for x
    x = 139,905,319.47/13,485.67
  6. Step 6: Final answer
    x = 10,374.37

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1.5x scale

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.