Home / 12,983.04-19,477.44-4,218.84

Finding the Fourth Proportional to 12,983.04, 19,477.44 and 4,218.84

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Solution

The fourth proportional to 12,983.04, 19,477.44 and 4,218.84 is: 6,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.04 : 19,477.44 = 4,218.84 : x
  2. Step 2: Convert to fraction form
    12,983.04/19,477.44 = 4,218.84/x
  3. Step 3: Cross multiply
    12,983.04x = 19,477.44 × 4,218.84
  4. Step 4: Simplify right side
    12,983.04x = 82,172,202.97
  5. Step 5: Solve for x
    x = 82,172,202.97/12,983.04
  6. Step 6: Final answer
    x = 6,329.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.