Home / 12,289.46-18,435.87-3,966.71

Finding the Fourth Proportional to 12,289.46, 18,435.87 and 3,966.71

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Solution

The fourth proportional to 12,289.46, 18,435.87 and 3,966.71 is: 5,950.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289.46 : 18,435.87 = 3,966.71 : x
  2. Step 2: Convert to fraction form
    12,289.46/18,435.87 = 3,966.71/x
  3. Step 3: Cross multiply
    12,289.46x = 18,435.87 × 3,966.71
  4. Step 4: Simplify right side
    12,289.46x = 73,129,657.71
  5. Step 5: Solve for x
    x = 73,129,657.71/12,289.46
  6. Step 6: Final answer
    x = 5,950.60

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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.