Home / 14,313.12-21,475.86-7,743.96

Finding the Fourth Proportional to 14,313.12, 21,475.86 and 7,743.96

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Solution

The fourth proportional to 14,313.12, 21,475.86 and 7,743.96 is: 11,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,313.12 : 21,475.86 = 7,743.96 : x
  2. Step 2: Convert to fraction form
    14,313.12/21,475.86 = 7,743.96/x
  3. Step 3: Cross multiply
    14,313.12x = 21,475.86 × 7,743.96
  4. Step 4: Simplify right side
    14,313.12x = 166,308,200.81
  5. Step 5: Solve for x
    x = 166,308,200.81/14,313.12
  6. Step 6: Final answer
    x = 11,619.28

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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.