Home / 11,240.12-15,511.50-6,272.12

Finding the Fourth Proportional to 11,240.12, 15,511.50 and 6,272.12

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Solution

The fourth proportional to 11,240.12, 15,511.50 and 6,272.12 is: 8,655.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.12 : 15,511.50 = 6,272.12 : x
  2. Step 2: Convert to fraction form
    11,240.12/15,511.50 = 6,272.12/x
  3. Step 3: Cross multiply
    11,240.12x = 15,511.50 × 6,272.12
  4. Step 4: Simplify right side
    11,240.12x = 97,289,989.38
  5. Step 5: Solve for x
    x = 97,289,989.38/11,240.12
  6. Step 6: Final answer
    x = 8,655.60

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Half scale
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Double scale
Find fourth proportional to 11,241.12, 15,512.88 and 6,273.12
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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.