Home / 13,934.63-19,230.12-7,647

Finding the Fourth Proportional to 13,934.63, 19,230.12 and 7,647

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Solution

The fourth proportional to 13,934.63, 19,230.12 and 7,647 is: 10,553.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.63 : 19,230.12 = 7,647 : x
  2. Step 2: Convert to fraction form
    13,934.63/19,230.12 = 7,647/x
  3. Step 3: Cross multiply
    13,934.63x = 19,230.12 × 7,647
  4. Step 4: Simplify right side
    13,934.63x = 147,052,727.64
  5. Step 5: Solve for x
    x = 147,052,727.64/13,934.63
  6. Step 6: Final answer
    x = 10,553.04

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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.