Home / 18,191.30-25,101.96-10,233.36

Finding the Fourth Proportional to 18,191.30, 25,101.96 and 10,233.36

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Solution

The fourth proportional to 18,191.30, 25,101.96 and 10,233.36 is: 14,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.30 : 25,101.96 = 10,233.36 : x
  2. Step 2: Convert to fraction form
    18,191.30/25,101.96 = 10,233.36/x
  3. Step 3: Cross multiply
    18,191.30x = 25,101.96 × 10,233.36
  4. Step 4: Simplify right side
    18,191.30x = 256,877,393.39
  5. Step 5: Solve for x
    x = 256,877,393.39/18,191.30
  6. Step 6: Final answer
    x = 14,120.89

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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.