Home / 12,606.90-18,902.94-4,284.66

Finding the Fourth Proportional to 12,606.90, 18,902.94 and 4,284.66

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Solution

The fourth proportional to 12,606.90, 18,902.94 and 4,284.66 is: 6,424.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.90 : 18,902.94 = 4,284.66 : x
  2. Step 2: Convert to fraction form
    12,606.90/18,902.94 = 4,284.66/x
  3. Step 3: Cross multiply
    12,606.90x = 18,902.94 × 4,284.66
  4. Step 4: Simplify right side
    12,606.90x = 80,992,670.90
  5. Step 5: Solve for x
    x = 80,992,670.90/12,606.90
  6. Step 6: Final answer
    x = 6,424.47

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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.