Home / 11,590.90-17,409.60-6,920.02

Finding the Fourth Proportional to 11,590.90, 17,409.60 and 6,920.02

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Solution

The fourth proportional to 11,590.90, 17,409.60 and 6,920.02 is: 10,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,590.90 : 17,409.60 = 6,920.02 : x
  2. Step 2: Convert to fraction form
    11,590.90/17,409.60 = 6,920.02/x
  3. Step 3: Cross multiply
    11,590.90x = 17,409.60 × 6,920.02
  4. Step 4: Simplify right side
    11,590.90x = 120,474,780.19
  5. Step 5: Solve for x
    x = 120,474,780.19/11,590.90
  6. Step 6: Final answer
    x = 10,393.91

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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.