Home / 9,191.28-12,684.11-4,999.53

Finding the Fourth Proportional to 9,191.28, 12,684.11 and 4,999.53

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Solution

The fourth proportional to 9,191.28, 12,684.11 and 4,999.53 is: 6,899.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.28 : 12,684.11 = 4,999.53 : x
  2. Step 2: Convert to fraction form
    9,191.28/12,684.11 = 4,999.53/x
  3. Step 3: Cross multiply
    9,191.28x = 12,684.11 × 4,999.53
  4. Step 4: Simplify right side
    9,191.28x = 63,414,563.47
  5. Step 5: Solve for x
    x = 63,414,563.47/9,191.28
  6. Step 6: Final answer
    x = 6,899.43

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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.