Home / 12,762.38-19,118.61-8,366.42

Finding the Fourth Proportional to 12,762.38, 19,118.61 and 8,366.42

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Solution

The fourth proportional to 12,762.38, 19,118.61 and 8,366.42 is: 12,533.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762.38 : 19,118.61 = 8,366.42 : x
  2. Step 2: Convert to fraction form
    12,762.38/19,118.61 = 8,366.42/x
  3. Step 3: Cross multiply
    12,762.38x = 19,118.61 × 8,366.42
  4. Step 4: Simplify right side
    12,762.38x = 159,954,321.08
  5. Step 5: Solve for x
    x = 159,954,321.08/12,762.38
  6. Step 6: Final answer
    x = 12,533.27

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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.