Home / 13,184.60-19,776.90-5,391.59

Finding the Fourth Proportional to 13,184.60, 19,776.90 and 5,391.59

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Solution

The fourth proportional to 13,184.60, 19,776.90 and 5,391.59 is: 8,087.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.60 : 19,776.90 = 5,391.59 : x
  2. Step 2: Convert to fraction form
    13,184.60/19,776.90 = 5,391.59/x
  3. Step 3: Cross multiply
    13,184.60x = 19,776.90 × 5,391.59
  4. Step 4: Simplify right side
    13,184.60x = 106,628,936.27
  5. Step 5: Solve for x
    x = 106,628,936.27/13,184.60
  6. Step 6: Final answer
    x = 8,087.39

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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.