Home / 13,233.92-19,840.80-10,318.40

Finding the Fourth Proportional to 13,233.92, 19,840.80 and 10,318.40

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Solution

The fourth proportional to 13,233.92, 19,840.80 and 10,318.40 is: 15,469.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,233.92 : 19,840.80 = 10,318.40 : x
  2. Step 2: Convert to fraction form
    13,233.92/19,840.80 = 10,318.40/x
  3. Step 3: Cross multiply
    13,233.92x = 19,840.80 × 10,318.40
  4. Step 4: Simplify right side
    13,233.92x = 204,725,310.72
  5. Step 5: Solve for x
    x = 204,725,310.72/13,233.92
  6. Step 6: Final answer
    x = 15,469.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.