Home / 13,382.21-18,465.57-7,414.23

Finding the Fourth Proportional to 13,382.21, 18,465.57 and 7,414.23

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Solution

The fourth proportional to 13,382.21, 18,465.57 and 7,414.23 is: 10,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.21 : 18,465.57 = 7,414.23 : x
  2. Step 2: Convert to fraction form
    13,382.21/18,465.57 = 7,414.23/x
  3. Step 3: Cross multiply
    13,382.21x = 18,465.57 × 7,414.23
  4. Step 4: Simplify right side
    13,382.21x = 136,908,052.31
  5. Step 5: Solve for x
    x = 136,908,052.31/13,382.21
  6. Step 6: Final answer
    x = 10,230.60

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Half scale
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Double scale
Find fourth proportional to 13,383.21, 18,466.95 and 7,415.23
Similar ratio
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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.