Home / 12,550.19-17,322.42-7,515.65

Finding the Fourth Proportional to 12,550.19, 17,322.42 and 7,515.65

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Solution

The fourth proportional to 12,550.19, 17,322.42 and 7,515.65 is: 10,373.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.19 : 17,322.42 = 7,515.65 : x
  2. Step 2: Convert to fraction form
    12,550.19/17,322.42 = 7,515.65/x
  3. Step 3: Cross multiply
    12,550.19x = 17,322.42 × 7,515.65
  4. Step 4: Simplify right side
    12,550.19x = 130,189,245.87
  5. Step 5: Solve for x
    x = 130,189,245.87/12,550.19
  6. Step 6: Final answer
    x = 10,373.49

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Half scale
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Double scale
Find fourth proportional to 12,551.19, 17,323.80 and 7,516.65
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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.