Home / 12,522.40-18,783.90-4,202.69

Finding the Fourth Proportional to 12,522.40, 18,783.90 and 4,202.69

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Solution

The fourth proportional to 12,522.40, 18,783.90 and 4,202.69 is: 6,304.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.40 : 18,783.90 = 4,202.69 : x
  2. Step 2: Convert to fraction form
    12,522.40/18,783.90 = 4,202.69/x
  3. Step 3: Cross multiply
    12,522.40x = 18,783.90 × 4,202.69
  4. Step 4: Simplify right side
    12,522.40x = 78,942,814.77
  5. Step 5: Solve for x
    x = 78,942,814.77/12,522.40
  6. Step 6: Final answer
    x = 6,304.13

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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.