Home / 10,969.20-15,137.40-6,253.38

Finding the Fourth Proportional to 10,969.20, 15,137.40 and 6,253.38

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Solution

The fourth proportional to 10,969.20, 15,137.40 and 6,253.38 is: 8,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,969.20 : 15,137.40 = 6,253.38 : x
  2. Step 2: Convert to fraction form
    10,969.20/15,137.40 = 6,253.38/x
  3. Step 3: Cross multiply
    10,969.20x = 15,137.40 × 6,253.38
  4. Step 4: Simplify right side
    10,969.20x = 94,659,914.41
  5. Step 5: Solve for x
    x = 94,659,914.41/10,969.20
  6. Step 6: Final answer
    x = 8,629.61

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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.