Home / 11,215.60-16,817.56-4,189.84

Finding the Fourth Proportional to 11,215.60, 16,817.56 and 4,189.84

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Solution

The fourth proportional to 11,215.60, 16,817.56 and 4,189.84 is: 6,282.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.60 : 16,817.56 = 4,189.84 : x
  2. Step 2: Convert to fraction form
    11,215.60/16,817.56 = 4,189.84/x
  3. Step 3: Cross multiply
    11,215.60x = 16,817.56 × 4,189.84
  4. Step 4: Simplify right side
    11,215.60x = 70,462,885.59
  5. Step 5: Solve for x
    x = 70,462,885.59/11,215.60
  6. Step 6: Final answer
    x = 6,282.58

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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.