Home / 11,909.23-17,864.52-3,590.40

Finding the Fourth Proportional to 11,909.23, 17,864.52 and 3,590.40

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Solution

The fourth proportional to 11,909.23, 17,864.52 and 3,590.40 is: 5,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.23 : 17,864.52 = 3,590.40 : x
  2. Step 2: Convert to fraction form
    11,909.23/17,864.52 = 3,590.40/x
  3. Step 3: Cross multiply
    11,909.23x = 17,864.52 × 3,590.40
  4. Step 4: Simplify right side
    11,909.23x = 64,140,772.61
  5. Step 5: Solve for x
    x = 64,140,772.61/11,909.23
  6. Step 6: Final answer
    x = 5,385.80

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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.