Home / 12,685.38-19,033.54-4,899.66

Finding the Fourth Proportional to 12,685.38, 19,033.54 and 4,899.66

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Solution

The fourth proportional to 12,685.38, 19,033.54 and 4,899.66 is: 7,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685.38 : 19,033.54 = 4,899.66 : x
  2. Step 2: Convert to fraction form
    12,685.38/19,033.54 = 4,899.66/x
  3. Step 3: Cross multiply
    12,685.38x = 19,033.54 × 4,899.66
  4. Step 4: Simplify right side
    12,685.38x = 93,257,874.60
  5. Step 5: Solve for x
    x = 93,257,874.60/12,685.38
  6. Step 6: Final answer
    x = 7,351.60

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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.