Home / 13,012.50-19,519.29-3,778.50

Finding the Fourth Proportional to 13,012.50, 19,519.29 and 3,778.50

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Solution

The fourth proportional to 13,012.50, 19,519.29 and 3,778.50 is: 5,667.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.50 : 19,519.29 = 3,778.50 : x
  2. Step 2: Convert to fraction form
    13,012.50/19,519.29 = 3,778.50/x
  3. Step 3: Cross multiply
    13,012.50x = 19,519.29 × 3,778.50
  4. Step 4: Simplify right side
    13,012.50x = 73,753,637.27
  5. Step 5: Solve for x
    x = 73,753,637.27/13,012.50
  6. Step 6: Final answer
    x = 5,667.91

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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.