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Finding the Fourth Proportional to 11,005.00, 16,488.87 and 7,869.08

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Solution

The fourth proportional to 11,005.00, 16,488.87 and 7,869.08 is: 11,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.00 : 16,488.87 = 7,869.08 : x
  2. Step 2: Convert to fraction form
    11,005.00/16,488.87 = 7,869.08/x
  3. Step 3: Cross multiply
    11,005.00x = 16,488.87 × 7,869.08
  4. Step 4: Simplify right side
    11,005.00x = 129,752,248.85
  5. Step 5: Solve for x
    x = 129,752,248.85/11,005.00
  6. Step 6: Final answer
    x = 11,790.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.