Home / 11,533.82-17,237.53-8,420.38

Finding the Fourth Proportional to 11,533.82, 17,237.53 and 8,420.38

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Solution

The fourth proportional to 11,533.82, 17,237.53 and 8,420.38 is: 12,584.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,533.82 : 17,237.53 = 8,420.38 : x
  2. Step 2: Convert to fraction form
    11,533.82/17,237.53 = 8,420.38/x
  3. Step 3: Cross multiply
    11,533.82x = 17,237.53 × 8,420.38
  4. Step 4: Simplify right side
    11,533.82x = 145,146,552.86
  5. Step 5: Solve for x
    x = 145,146,552.86/11,533.82
  6. Step 6: Final answer
    x = 12,584.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.