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Finding the Fourth Proportional to 11,150.04, 15,380.64 and 6,951

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Solution

The fourth proportional to 11,150.04, 15,380.64 and 6,951 is: 9,588.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.04 : 15,380.64 = 6,951 : x
  2. Step 2: Convert to fraction form
    11,150.04/15,380.64 = 6,951/x
  3. Step 3: Cross multiply
    11,150.04x = 15,380.64 × 6,951
  4. Step 4: Simplify right side
    11,150.04x = 106,910,828.64
  5. Step 5: Solve for x
    x = 106,910,828.64/11,150.04
  6. Step 6: Final answer
    x = 9,588.38

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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.