Home / 19,659.12-29,491.88-7,973.36

Finding the Fourth Proportional to 19,659.12, 29,491.88 and 7,973.36

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Solution

The fourth proportional to 19,659.12, 29,491.88 and 7,973.36 is: 11,961.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.12 : 29,491.88 = 7,973.36 : x
  2. Step 2: Convert to fraction form
    19,659.12/29,491.88 = 7,973.36/x
  3. Step 3: Cross multiply
    19,659.12x = 29,491.88 × 7,973.36
  4. Step 4: Simplify right side
    19,659.12x = 235,149,376.32
  5. Step 5: Solve for x
    x = 235,149,376.32/19,659.12
  6. Step 6: Final answer
    x = 11,961.34

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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.