Home / 13,326.04-19,931.82-7,765.48

Finding the Fourth Proportional to 13,326.04, 19,931.82 and 7,765.48

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Solution

The fourth proportional to 13,326.04, 19,931.82 and 7,765.48 is: 11,614.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.04 : 19,931.82 = 7,765.48 : x
  2. Step 2: Convert to fraction form
    13,326.04/19,931.82 = 7,765.48/x
  3. Step 3: Cross multiply
    13,326.04x = 19,931.82 × 7,765.48
  4. Step 4: Simplify right side
    13,326.04x = 154,780,149.57
  5. Step 5: Solve for x
    x = 154,780,149.57/13,326.04
  6. Step 6: Final answer
    x = 11,614.86

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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.