Home / 13,039.18-19,558.68-3,178.24

Finding the Fourth Proportional to 13,039.18, 19,558.68 and 3,178.24

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Solution

The fourth proportional to 13,039.18, 19,558.68 and 3,178.24 is: 4,767.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.18 : 19,558.68 = 3,178.24 : x
  2. Step 2: Convert to fraction form
    13,039.18/19,558.68 = 3,178.24/x
  3. Step 3: Cross multiply
    13,039.18x = 19,558.68 × 3,178.24
  4. Step 4: Simplify right side
    13,039.18x = 62,162,179.12
  5. Step 5: Solve for x
    x = 62,162,179.12/13,039.18
  6. Step 6: Final answer
    x = 4,767.34

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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.