Home / 11,126.94-15,354.14-6,649.80

Finding the Fourth Proportional to 11,126.94, 15,354.14 and 6,649.80

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Solution

The fourth proportional to 11,126.94, 15,354.14 and 6,649.80 is: 9,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.94 : 15,354.14 = 6,649.80 : x
  2. Step 2: Convert to fraction form
    11,126.94/15,354.14 = 6,649.80/x
  3. Step 3: Cross multiply
    11,126.94x = 15,354.14 × 6,649.80
  4. Step 4: Simplify right side
    11,126.94x = 102,101,926.92
  5. Step 5: Solve for x
    x = 102,101,926.92/11,126.94
  6. Step 6: Final answer
    x = 9,176.10

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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.