Home / 12,143.04-18,218.94-4,246.71

Finding the Fourth Proportional to 12,143.04, 18,218.94 and 4,246.71

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Solution

The fourth proportional to 12,143.04, 18,218.94 and 4,246.71 is: 6,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.04 : 18,218.94 = 4,246.71 : x
  2. Step 2: Convert to fraction form
    12,143.04/18,218.94 = 4,246.71/x
  3. Step 3: Cross multiply
    12,143.04x = 18,218.94 × 4,246.71
  4. Step 4: Simplify right side
    12,143.04x = 77,370,554.69
  5. Step 5: Solve for x
    x = 77,370,554.69/12,143.04
  6. Step 6: Final answer
    x = 6,371.60

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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.