Home / 13,185-19,824.93-12,157.56

Finding the Fourth Proportional to 13,185, 19,824.93 and 12,157.56

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Solution

The fourth proportional to 13,185, 19,824.93 and 12,157.56 is: 18,280.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185 : 19,824.93 = 12,157.56 : x
  2. Step 2: Convert to fraction form
    13,185/19,824.93 = 12,157.56/x
  3. Step 3: Cross multiply
    13,185x = 19,824.93 × 12,157.56
  4. Step 4: Simplify right side
    13,185x = 241,022,775.97
  5. Step 5: Solve for x
    x = 241,022,775.97/13,185
  6. Step 6: Final answer
    x = 18,280.07

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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.