Home / 9,517.18-13,124.98-8,172.33

Finding the Fourth Proportional to 9,517.18, 13,124.98 and 8,172.33

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Solution

The fourth proportional to 9,517.18, 13,124.98 and 8,172.33 is: 11,270.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,517.18 : 13,124.98 = 8,172.33 : x
  2. Step 2: Convert to fraction form
    9,517.18/13,124.98 = 8,172.33/x
  3. Step 3: Cross multiply
    9,517.18x = 13,124.98 × 8,172.33
  4. Step 4: Simplify right side
    9,517.18x = 107,261,667.80
  5. Step 5: Solve for x
    x = 107,261,667.80/9,517.18
  6. Step 6: Final answer
    x = 11,270.32

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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.