Home / 13,039.79-19,559.39-3,179.12

Finding the Fourth Proportional to 13,039.79, 19,559.39 and 3,179.12

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Solution

The fourth proportional to 13,039.79, 19,559.39 and 3,179.12 is: 4,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.79 : 19,559.39 = 3,179.12 : x
  2. Step 2: Convert to fraction form
    13,039.79/19,559.39 = 3,179.12/x
  3. Step 3: Cross multiply
    13,039.79x = 19,559.39 × 3,179.12
  4. Step 4: Simplify right side
    13,039.79x = 62,181,534.24
  5. Step 5: Solve for x
    x = 62,181,534.24/13,039.79
  6. Step 6: Final answer
    x = 4,768.60

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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.