Home / 13,189.36-19,784.04-5,395

Finding the Fourth Proportional to 13,189.36, 19,784.04 and 5,395

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Solution

The fourth proportional to 13,189.36, 19,784.04 and 5,395 is: 8,092.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.36 : 19,784.04 = 5,395 : x
  2. Step 2: Convert to fraction form
    13,189.36/19,784.04 = 5,395/x
  3. Step 3: Cross multiply
    13,189.36x = 19,784.04 × 5,395
  4. Step 4: Simplify right side
    13,189.36x = 106,734,895.80
  5. Step 5: Solve for x
    x = 106,734,895.80/13,189.36
  6. Step 6: Final answer
    x = 8,092.50

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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.