Home / 14,140.23-21,178.03-6,749.88

Finding the Fourth Proportional to 14,140.23, 21,178.03 and 6,749.88

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Solution

The fourth proportional to 14,140.23, 21,178.03 and 6,749.88 is: 10,109.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.23 : 21,178.03 = 6,749.88 : x
  2. Step 2: Convert to fraction form
    14,140.23/21,178.03 = 6,749.88/x
  3. Step 3: Cross multiply
    14,140.23x = 21,178.03 × 6,749.88
  4. Step 4: Simplify right side
    14,140.23x = 142,949,161.14
  5. Step 5: Solve for x
    x = 142,949,161.14/14,140.23
  6. Step 6: Final answer
    x = 10,109.39

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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.