Home / 13,606.96-18,772.76-8,571.64

Finding the Fourth Proportional to 13,606.96, 18,772.76 and 8,571.64

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Solution

The fourth proportional to 13,606.96, 18,772.76 and 8,571.64 is: 11,825.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.96 : 18,772.76 = 8,571.64 : x
  2. Step 2: Convert to fraction form
    13,606.96/18,772.76 = 8,571.64/x
  3. Step 3: Cross multiply
    13,606.96x = 18,772.76 × 8,571.64
  4. Step 4: Simplify right side
    13,606.96x = 160,913,340.53
  5. Step 5: Solve for x
    x = 160,913,340.53/13,606.96
  6. Step 6: Final answer
    x = 11,825.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.