Home / 12,450.49-17,178.01-7,412.19

Finding the Fourth Proportional to 12,450.49, 17,178.01 and 7,412.19

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Solution

The fourth proportional to 12,450.49, 17,178.01 and 7,412.19 is: 10,226.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.49 : 17,178.01 = 7,412.19 : x
  2. Step 2: Convert to fraction form
    12,450.49/17,178.01 = 7,412.19/x
  3. Step 3: Cross multiply
    12,450.49x = 17,178.01 × 7,412.19
  4. Step 4: Simplify right side
    12,450.49x = 127,326,673.94
  5. Step 5: Solve for x
    x = 127,326,673.94/12,450.49
  6. Step 6: Final answer
    x = 10,226.64

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.