Home / 10,668.20-16,009.58-3,742.70

Finding the Fourth Proportional to 10,668.20, 16,009.58 and 3,742.70

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Solution

The fourth proportional to 10,668.20, 16,009.58 and 3,742.70 is: 5,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668.20 : 16,009.58 = 3,742.70 : x
  2. Step 2: Convert to fraction form
    10,668.20/16,009.58 = 3,742.70/x
  3. Step 3: Cross multiply
    10,668.20x = 16,009.58 × 3,742.70
  4. Step 4: Simplify right side
    10,668.20x = 59,918,956.30
  5. Step 5: Solve for x
    x = 59,918,956.30/10,668.20
  6. Step 6: Final answer
    x = 5,616.60

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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.