Home / 13,240.56-19,863.70-4,475.28

Finding the Fourth Proportional to 13,240.56, 19,863.70 and 4,475.28

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Solution

The fourth proportional to 13,240.56, 19,863.70 and 4,475.28 is: 6,713.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.56 : 19,863.70 = 4,475.28 : x
  2. Step 2: Convert to fraction form
    13,240.56/19,863.70 = 4,475.28/x
  3. Step 3: Cross multiply
    13,240.56x = 19,863.70 × 4,475.28
  4. Step 4: Simplify right side
    13,240.56x = 88,895,608.15
  5. Step 5: Solve for x
    x = 88,895,608.15/13,240.56
  6. Step 6: Final answer
    x = 6,713.89

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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.