Home / 13,421.45-20,133.58-4,537.82

Finding the Fourth Proportional to 13,421.45, 20,133.58 and 4,537.82

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Solution

The fourth proportional to 13,421.45, 20,133.58 and 4,537.82 is: 6,807.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421.45 : 20,133.58 = 4,537.82 : x
  2. Step 2: Convert to fraction form
    13,421.45/20,133.58 = 4,537.82/x
  3. Step 3: Cross multiply
    13,421.45x = 20,133.58 × 4,537.82
  4. Step 4: Simplify right side
    13,421.45x = 91,362,562.00
  5. Step 5: Solve for x
    x = 91,362,562.00/13,421.45
  6. Step 6: Final answer
    x = 6,807.21

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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.