Home / 11,182.28-15,431.90-6,147.02

Finding the Fourth Proportional to 11,182.28, 15,431.90 and 6,147.02

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Solution

The fourth proportional to 11,182.28, 15,431.90 and 6,147.02 is: 8,483.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,182.28 : 15,431.90 = 6,147.02 : x
  2. Step 2: Convert to fraction form
    11,182.28/15,431.90 = 6,147.02/x
  3. Step 3: Cross multiply
    11,182.28x = 15,431.90 × 6,147.02
  4. Step 4: Simplify right side
    11,182.28x = 94,860,205.78
  5. Step 5: Solve for x
    x = 94,860,205.78/11,182.28
  6. Step 6: Final answer
    x = 8,483.09

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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.