Home / 9,420.04-14,129.62-3,872.04

Finding the Fourth Proportional to 9,420.04, 14,129.62 and 3,872.04

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Solution

The fourth proportional to 9,420.04, 14,129.62 and 3,872.04 is: 5,807.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.04 : 14,129.62 = 3,872.04 : x
  2. Step 2: Convert to fraction form
    9,420.04/14,129.62 = 3,872.04/x
  3. Step 3: Cross multiply
    9,420.04x = 14,129.62 × 3,872.04
  4. Step 4: Simplify right side
    9,420.04x = 54,710,453.82
  5. Step 5: Solve for x
    x = 54,710,453.82/9,420.04
  6. Step 6: Final answer
    x = 5,807.88

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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.