Home / 13,179.32-19,768.27-3,318.58

Finding the Fourth Proportional to 13,179.32, 19,768.27 and 3,318.58

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Solution

The fourth proportional to 13,179.32, 19,768.27 and 3,318.58 is: 4,977.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.32 : 19,768.27 = 3,318.58 : x
  2. Step 2: Convert to fraction form
    13,179.32/19,768.27 = 3,318.58/x
  3. Step 3: Cross multiply
    13,179.32x = 19,768.27 × 3,318.58
  4. Step 4: Simplify right side
    13,179.32x = 65,602,585.46
  5. Step 5: Solve for x
    x = 65,602,585.46/13,179.32
  6. Step 6: Final answer
    x = 4,977.69

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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.