Home / 12,722.18-19,086.76-6,148.38

Finding the Fourth Proportional to 12,722.18, 19,086.76 and 6,148.38

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Solution

The fourth proportional to 12,722.18, 19,086.76 and 6,148.38 is: 9,224.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.18 : 19,086.76 = 6,148.38 : x
  2. Step 2: Convert to fraction form
    12,722.18/19,086.76 = 6,148.38/x
  3. Step 3: Cross multiply
    12,722.18x = 19,086.76 × 6,148.38
  4. Step 4: Simplify right side
    12,722.18x = 117,352,653.45
  5. Step 5: Solve for x
    x = 117,352,653.45/12,722.18
  6. Step 6: Final answer
    x = 9,224.26

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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.