Home / 13,249.09-18,283.37-7,280.75

Finding the Fourth Proportional to 13,249.09, 18,283.37 and 7,280.75

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Solution

The fourth proportional to 13,249.09, 18,283.37 and 7,280.75 is: 10,047.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.09 : 18,283.37 = 7,280.75 : x
  2. Step 2: Convert to fraction form
    13,249.09/18,283.37 = 7,280.75/x
  3. Step 3: Cross multiply
    13,249.09x = 18,283.37 × 7,280.75
  4. Step 4: Simplify right side
    13,249.09x = 133,116,696.39
  5. Step 5: Solve for x
    x = 133,116,696.39/13,249.09
  6. Step 6: Final answer
    x = 10,047.24

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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.