Home / 13,312.31-19,960.97-4,422.88

Finding the Fourth Proportional to 13,312.31, 19,960.97 and 4,422.88

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Solution

The fourth proportional to 13,312.31, 19,960.97 and 4,422.88 is: 6,631.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.31 : 19,960.97 = 4,422.88 : x
  2. Step 2: Convert to fraction form
    13,312.31/19,960.97 = 4,422.88/x
  3. Step 3: Cross multiply
    13,312.31x = 19,960.97 × 4,422.88
  4. Step 4: Simplify right side
    13,312.31x = 88,284,853.07
  5. Step 5: Solve for x
    x = 88,284,853.07/13,312.31
  6. Step 6: Final answer
    x = 6,631.82

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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.