Home / 12,214.94-18,320.40-3,450.46

Finding the Fourth Proportional to 12,214.94, 18,320.40 and 3,450.46

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Solution

The fourth proportional to 12,214.94, 18,320.40 and 3,450.46 is: 5,175.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.94 : 18,320.40 = 3,450.46 : x
  2. Step 2: Convert to fraction form
    12,214.94/18,320.40 = 3,450.46/x
  3. Step 3: Cross multiply
    12,214.94x = 18,320.40 × 3,450.46
  4. Step 4: Simplify right side
    12,214.94x = 63,213,807.38
  5. Step 5: Solve for x
    x = 63,213,807.38/12,214.94
  6. Step 6: Final answer
    x = 5,175.12

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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.