Home / 13,253.36-18,282.00-7,945.09

Finding the Fourth Proportional to 13,253.36, 18,282.00 and 7,945.09

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Solution

The fourth proportional to 13,253.36, 18,282.00 and 7,945.09 is: 10,959.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.36 : 18,282.00 = 7,945.09 : x
  2. Step 2: Convert to fraction form
    13,253.36/18,282.00 = 7,945.09/x
  3. Step 3: Cross multiply
    13,253.36x = 18,282.00 × 7,945.09
  4. Step 4: Simplify right side
    13,253.36x = 145,252,119.47
  5. Step 5: Solve for x
    x = 145,252,119.47/13,253.36
  6. Step 6: Final answer
    x = 10,959.65

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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.