Home / 13,351.54-18,433.11-8,322.57

Finding the Fourth Proportional to 13,351.54, 18,433.11 and 8,322.57

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Solution

The fourth proportional to 13,351.54, 18,433.11 and 8,322.57 is: 11,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.54 : 18,433.11 = 8,322.57 : x
  2. Step 2: Convert to fraction form
    13,351.54/18,433.11 = 8,322.57/x
  3. Step 3: Cross multiply
    13,351.54x = 18,433.11 × 8,322.57
  4. Step 4: Simplify right side
    13,351.54x = 153,410,848.29
  5. Step 5: Solve for x
    x = 153,410,848.29/13,351.54
  6. Step 6: Final answer
    x = 11,490.12

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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.