Home / 13,362.14-18,439.92-8,328.39

Finding the Fourth Proportional to 13,362.14, 18,439.92 and 8,328.39

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Solution

The fourth proportional to 13,362.14, 18,439.92 and 8,328.39 is: 11,493.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.14 : 18,439.92 = 8,328.39 : x
  2. Step 2: Convert to fraction form
    13,362.14/18,439.92 = 8,328.39/x
  3. Step 3: Cross multiply
    13,362.14x = 18,439.92 × 8,328.39
  4. Step 4: Simplify right side
    13,362.14x = 153,574,845.33
  5. Step 5: Solve for x
    x = 153,574,845.33/13,362.14
  6. Step 6: Final answer
    x = 11,493.29

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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.