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Finding the Fourth Proportional to 7,779.99, 11,671.13 and 2,513.24

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Solution

The fourth proportional to 7,779.99, 11,671.13 and 2,513.24 is: 3,770.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.99 : 11,671.13 = 2,513.24 : x
  2. Step 2: Convert to fraction form
    7,779.99/11,671.13 = 2,513.24/x
  3. Step 3: Cross multiply
    7,779.99x = 11,671.13 × 2,513.24
  4. Step 4: Simplify right side
    7,779.99x = 29,332,338.20
  5. Step 5: Solve for x
    x = 29,332,338.20/7,779.99
  6. Step 6: Final answer
    x = 3,770.23

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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.