Home / 11,620.39-17,432.67-4,235.21

Finding the Fourth Proportional to 11,620.39, 17,432.67 and 4,235.21

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Solution

The fourth proportional to 11,620.39, 17,432.67 and 4,235.21 is: 6,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.39 : 17,432.67 = 4,235.21 : x
  2. Step 2: Convert to fraction form
    11,620.39/17,432.67 = 4,235.21/x
  3. Step 3: Cross multiply
    11,620.39x = 17,432.67 × 4,235.21
  4. Step 4: Simplify right side
    11,620.39x = 73,831,018.31
  5. Step 5: Solve for x
    x = 73,831,018.31/11,620.39
  6. Step 6: Final answer
    x = 6,353.58

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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.