Home / 13,905.00-19,186.01-7,938.60

Finding the Fourth Proportional to 13,905.00, 19,186.01 and 7,938.60

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Solution

The fourth proportional to 13,905.00, 19,186.01 and 7,938.60 is: 10,953.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.00 : 19,186.01 = 7,938.60 : x
  2. Step 2: Convert to fraction form
    13,905.00/19,186.01 = 7,938.60/x
  3. Step 3: Cross multiply
    13,905.00x = 19,186.01 × 7,938.60
  4. Step 4: Simplify right side
    13,905.00x = 152,310,058.99
  5. Step 5: Solve for x
    x = 152,310,058.99/13,905.00
  6. Step 6: Final answer
    x = 10,953.62

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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.