Home / 13,331.04-18,394.79-8,861.37

Finding the Fourth Proportional to 13,331.04, 18,394.79 and 8,861.37

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Solution

The fourth proportional to 13,331.04, 18,394.79 and 8,861.37 is: 12,227.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.04 : 18,394.79 = 8,861.37 : x
  2. Step 2: Convert to fraction form
    13,331.04/18,394.79 = 8,861.37/x
  3. Step 3: Cross multiply
    13,331.04x = 18,394.79 × 8,861.37
  4. Step 4: Simplify right side
    13,331.04x = 163,003,040.26
  5. Step 5: Solve for x
    x = 163,003,040.26/13,331.04
  6. Step 6: Final answer
    x = 12,227.33

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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.