Home / 13,960.71-19,285.39-12,699.54

Finding the Fourth Proportional to 13,960.71, 19,285.39 and 12,699.54

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Solution

The fourth proportional to 13,960.71, 19,285.39 and 12,699.54 is: 17,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,960.71 : 19,285.39 = 12,699.54 : x
  2. Step 2: Convert to fraction form
    13,960.71/19,285.39 = 12,699.54/x
  3. Step 3: Cross multiply
    13,960.71x = 19,285.39 × 12,699.54
  4. Step 4: Simplify right side
    13,960.71x = 244,915,597.60
  5. Step 5: Solve for x
    x = 244,915,597.60/13,960.71
  6. Step 6: Final answer
    x = 17,543.21

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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.