Home / 12,282.90-18,425.70-4,493.40

Finding the Fourth Proportional to 12,282.90, 18,425.70 and 4,493.40

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Solution

The fourth proportional to 12,282.90, 18,425.70 and 4,493.40 is: 6,740.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.90 : 18,425.70 = 4,493.40 : x
  2. Step 2: Convert to fraction form
    12,282.90/18,425.70 = 4,493.40/x
  3. Step 3: Cross multiply
    12,282.90x = 18,425.70 × 4,493.40
  4. Step 4: Simplify right side
    12,282.90x = 82,794,040.38
  5. Step 5: Solve for x
    x = 82,794,040.38/12,282.90
  6. Step 6: Final answer
    x = 6,740.59

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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.