Home / 13,784.69-20,666.83-4,419.26

Finding the Fourth Proportional to 13,784.69, 20,666.83 and 4,419.26

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Solution

The fourth proportional to 13,784.69, 20,666.83 and 4,419.26 is: 6,625.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.69 : 20,666.83 = 4,419.26 : x
  2. Step 2: Convert to fraction form
    13,784.69/20,666.83 = 4,419.26/x
  3. Step 3: Cross multiply
    13,784.69x = 20,666.83 × 4,419.26
  4. Step 4: Simplify right side
    13,784.69x = 91,332,095.15
  5. Step 5: Solve for x
    x = 91,332,095.15/13,784.69
  6. Step 6: Final answer
    x = 6,625.62

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1.5x scale

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.