Home / 13,446.28-18,557.58-8,141.32

Finding the Fourth Proportional to 13,446.28, 18,557.58 and 8,141.32

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Solution

The fourth proportional to 13,446.28, 18,557.58 and 8,141.32 is: 11,236.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.28 : 18,557.58 = 8,141.32 : x
  2. Step 2: Convert to fraction form
    13,446.28/18,557.58 = 8,141.32/x
  3. Step 3: Cross multiply
    13,446.28x = 18,557.58 × 8,141.32
  4. Step 4: Simplify right side
    13,446.28x = 151,083,197.21
  5. Step 5: Solve for x
    x = 151,083,197.21/13,446.28
  6. Step 6: Final answer
    x = 11,236.06

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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.