Home / 13,020.55-19,554.99-6,784.87

Finding the Fourth Proportional to 13,020.55, 19,554.99 and 6,784.87

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Solution

The fourth proportional to 13,020.55, 19,554.99 and 6,784.87 is: 10,189.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.55 : 19,554.99 = 6,784.87 : x
  2. Step 2: Convert to fraction form
    13,020.55/19,554.99 = 6,784.87/x
  3. Step 3: Cross multiply
    13,020.55x = 19,554.99 × 6,784.87
  4. Step 4: Simplify right side
    13,020.55x = 132,678,065.00
  5. Step 5: Solve for x
    x = 132,678,065.00/13,020.55
  6. Step 6: Final answer
    x = 10,189.90

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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.