Home / 13,249.08-18,284.49-7,947.54

Finding the Fourth Proportional to 13,249.08, 18,284.49 and 7,947.54

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Solution

The fourth proportional to 13,249.08, 18,284.49 and 7,947.54 is: 10,968.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.08 : 18,284.49 = 7,947.54 : x
  2. Step 2: Convert to fraction form
    13,249.08/18,284.49 = 7,947.54/x
  3. Step 3: Cross multiply
    13,249.08x = 18,284.49 × 7,947.54
  4. Step 4: Simplify right side
    13,249.08x = 145,316,715.65
  5. Step 5: Solve for x
    x = 145,316,715.65/13,249.08
  6. Step 6: Final answer
    x = 10,968.06

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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.