Home / 13,359.38-19,940.40-11,783.49

Finding the Fourth Proportional to 13,359.38, 19,940.40 and 11,783.49

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Solution

The fourth proportional to 13,359.38, 19,940.40 and 11,783.49 is: 17,588.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.38 : 19,940.40 = 11,783.49 : x
  2. Step 2: Convert to fraction form
    13,359.38/19,940.40 = 11,783.49/x
  3. Step 3: Cross multiply
    13,359.38x = 19,940.40 × 11,783.49
  4. Step 4: Simplify right side
    13,359.38x = 234,967,504.00
  5. Step 5: Solve for x
    x = 234,967,504.00/13,359.38
  6. Step 6: Final answer
    x = 17,588.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.