Home / 17,639.37-26,459.42-8,274.21

Finding the Fourth Proportional to 17,639.37, 26,459.42 and 8,274.21

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Solution

The fourth proportional to 17,639.37, 26,459.42 and 8,274.21 is: 12,411.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,639.37 : 26,459.42 = 8,274.21 : x
  2. Step 2: Convert to fraction form
    17,639.37/26,459.42 = 8,274.21/x
  3. Step 3: Cross multiply
    17,639.37x = 26,459.42 × 8,274.21
  4. Step 4: Simplify right side
    17,639.37x = 218,930,797.56
  5. Step 5: Solve for x
    x = 218,930,797.56/17,639.37
  6. Step 6: Final answer
    x = 12,411.49

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Half scale
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Double scale
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Similar ratio
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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.