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Finding the Fourth Proportional to 11,590.80, 17,394.30 and 7,440.90

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Solution

The fourth proportional to 11,590.80, 17,394.30 and 7,440.90 is: 11,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,590.80 : 17,394.30 = 7,440.90 : x
  2. Step 2: Convert to fraction form
    11,590.80/17,394.30 = 7,440.90/x
  3. Step 3: Cross multiply
    11,590.80x = 17,394.30 × 7,440.90
  4. Step 4: Simplify right side
    11,590.80x = 129,429,246.87
  5. Step 5: Solve for x
    x = 129,429,246.87/11,590.80
  6. Step 6: Final answer
    x = 11,166.55

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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.