Home / 13,456.04-20,171.06-6,885.32

Finding the Fourth Proportional to 13,456.04, 20,171.06 and 6,885.32

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Solution

The fourth proportional to 13,456.04, 20,171.06 and 6,885.32 is: 10,321.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.04 : 20,171.06 = 6,885.32 : x
  2. Step 2: Convert to fraction form
    13,456.04/20,171.06 = 6,885.32/x
  3. Step 3: Cross multiply
    13,456.04x = 20,171.06 × 6,885.32
  4. Step 4: Simplify right side
    13,456.04x = 138,884,202.84
  5. Step 5: Solve for x
    x = 138,884,202.84/13,456.04
  6. Step 6: Final answer
    x = 10,321.33

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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.