Home / 11,426.38-15,768.48-6,649.16

Finding the Fourth Proportional to 11,426.38, 15,768.48 and 6,649.16

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Solution

The fourth proportional to 11,426.38, 15,768.48 and 6,649.16 is: 9,175.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,426.38 : 15,768.48 = 6,649.16 : x
  2. Step 2: Convert to fraction form
    11,426.38/15,768.48 = 6,649.16/x
  3. Step 3: Cross multiply
    11,426.38x = 15,768.48 × 6,649.16
  4. Step 4: Simplify right side
    11,426.38x = 104,847,113.23
  5. Step 5: Solve for x
    x = 104,847,113.23/11,426.38
  6. Step 6: Final answer
    x = 9,175.88

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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.