Home / 13,784.69-20,666.84-4,419.27

Finding the Fourth Proportional to 13,784.69, 20,666.84 and 4,419.27

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Solution

The fourth proportional to 13,784.69, 20,666.84 and 4,419.27 is: 6,625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.69 : 20,666.84 = 4,419.27 : x
  2. Step 2: Convert to fraction form
    13,784.69/20,666.84 = 4,419.27/x
  3. Step 3: Cross multiply
    13,784.69x = 20,666.84 × 4,419.27
  4. Step 4: Simplify right side
    13,784.69x = 91,332,323.91
  5. Step 5: Solve for x
    x = 91,332,323.91/13,784.69
  6. Step 6: Final answer
    x = 6,625.64

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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.