Home / 12,836.88-19,255.32-6,998.40

Finding the Fourth Proportional to 12,836.88, 19,255.32 and 6,998.40

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Solution

The fourth proportional to 12,836.88, 19,255.32 and 6,998.40 is: 10,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,836.88 : 19,255.32 = 6,998.40 : x
  2. Step 2: Convert to fraction form
    12,836.88/19,255.32 = 6,998.40/x
  3. Step 3: Cross multiply
    12,836.88x = 19,255.32 × 6,998.40
  4. Step 4: Simplify right side
    12,836.88x = 134,756,431.49
  5. Step 5: Solve for x
    x = 134,756,431.49/12,836.88
  6. Step 6: Final answer
    x = 10,497.60

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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.