Home / 13,282.51-18,329.39-7,974.19

Finding the Fourth Proportional to 13,282.51, 18,329.39 and 7,974.19

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Solution

The fourth proportional to 13,282.51, 18,329.39 and 7,974.19 is: 11,004.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.51 : 18,329.39 = 7,974.19 : x
  2. Step 2: Convert to fraction form
    13,282.51/18,329.39 = 7,974.19/x
  3. Step 3: Cross multiply
    13,282.51x = 18,329.39 × 7,974.19
  4. Step 4: Simplify right side
    13,282.51x = 146,161,998.57
  5. Step 5: Solve for x
    x = 146,161,998.57/13,282.51
  6. Step 6: Final answer
    x = 11,004.09

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Double scale
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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.