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Finding the Fourth Proportional to 11,891.04, 16,410.04 and 7,174.40

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Solution

The fourth proportional to 11,891.04, 16,410.04 and 7,174.40 is: 9,900.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.04 : 16,410.04 = 7,174.40 : x
  2. Step 2: Convert to fraction form
    11,891.04/16,410.04 = 7,174.40/x
  3. Step 3: Cross multiply
    11,891.04x = 16,410.04 × 7,174.40
  4. Step 4: Simplify right side
    11,891.04x = 117,732,190.98
  5. Step 5: Solve for x
    x = 117,732,190.98/11,891.04
  6. Step 6: Final answer
    x = 9,900.92

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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.