Home / 13,143.60-19,687.32-12,232.08

Finding the Fourth Proportional to 13,143.60, 19,687.32 and 12,232.08

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Solution

The fourth proportional to 13,143.60, 19,687.32 and 12,232.08 is: 18,321.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.60 : 19,687.32 = 12,232.08 : x
  2. Step 2: Convert to fraction form
    13,143.60/19,687.32 = 12,232.08/x
  3. Step 3: Cross multiply
    13,143.60x = 19,687.32 × 12,232.08
  4. Step 4: Simplify right side
    13,143.60x = 240,816,873.23
  5. Step 5: Solve for x
    x = 240,816,873.23/13,143.60
  6. Step 6: Final answer
    x = 18,321.99

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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.