Home / 11,412.98-17,118.57-3,621.86

Finding the Fourth Proportional to 11,412.98, 17,118.57 and 3,621.86

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Solution

The fourth proportional to 11,412.98, 17,118.57 and 3,621.86 is: 5,432.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,412.98 : 17,118.57 = 3,621.86 : x
  2. Step 2: Convert to fraction form
    11,412.98/17,118.57 = 3,621.86/x
  3. Step 3: Cross multiply
    11,412.98x = 17,118.57 × 3,621.86
  4. Step 4: Simplify right side
    11,412.98x = 62,001,063.94
  5. Step 5: Solve for x
    x = 62,001,063.94/11,412.98
  6. Step 6: Final answer
    x = 5,432.50

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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.