Home / 13,736.88-20,606.40-5,416.32

Finding the Fourth Proportional to 13,736.88, 20,606.40 and 5,416.32

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Solution

The fourth proportional to 13,736.88, 20,606.40 and 5,416.32 is: 8,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.88 : 20,606.40 = 5,416.32 : x
  2. Step 2: Convert to fraction form
    13,736.88/20,606.40 = 5,416.32/x
  3. Step 3: Cross multiply
    13,736.88x = 20,606.40 × 5,416.32
  4. Step 4: Simplify right side
    13,736.88x = 111,610,856.45
  5. Step 5: Solve for x
    x = 111,610,856.45/13,736.88
  6. Step 6: Final answer
    x = 8,124.91

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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.