Home / 13,382.87-18,467.15-7,412.94

Finding the Fourth Proportional to 13,382.87, 18,467.15 and 7,412.94

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Solution

The fourth proportional to 13,382.87, 18,467.15 and 7,412.94 is: 10,229.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.87 : 18,467.15 = 7,412.94 : x
  2. Step 2: Convert to fraction form
    13,382.87/18,467.15 = 7,412.94/x
  3. Step 3: Cross multiply
    13,382.87x = 18,467.15 × 7,412.94
  4. Step 4: Simplify right side
    13,382.87x = 136,895,837.86
  5. Step 5: Solve for x
    x = 136,895,837.86/13,382.87
  6. Step 6: Final answer
    x = 10,229.19

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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.