Home / 12,698.48-17,629.46-12,318.32

Finding the Fourth Proportional to 12,698.48, 17,629.46 and 12,318.32

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Solution

The fourth proportional to 12,698.48, 17,629.46 and 12,318.32 is: 17,101.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698.48 : 17,629.46 = 12,318.32 : x
  2. Step 2: Convert to fraction form
    12,698.48/17,629.46 = 12,318.32/x
  3. Step 3: Cross multiply
    12,698.48x = 17,629.46 × 12,318.32
  4. Step 4: Simplify right side
    12,698.48x = 217,165,329.71
  5. Step 5: Solve for x
    x = 217,165,329.71/12,698.48
  6. Step 6: Final answer
    x = 17,101.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.