Home / 12,237.48-18,310.86-7,309.80

Finding the Fourth Proportional to 12,237.48, 18,310.86 and 7,309.80

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Solution

The fourth proportional to 12,237.48, 18,310.86 and 7,309.80 is: 10,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.48 : 18,310.86 = 7,309.80 : x
  2. Step 2: Convert to fraction form
    12,237.48/18,310.86 = 7,309.80/x
  3. Step 3: Cross multiply
    12,237.48x = 18,310.86 × 7,309.80
  4. Step 4: Simplify right side
    12,237.48x = 133,848,724.43
  5. Step 5: Solve for x
    x = 133,848,724.43/12,237.48
  6. Step 6: Final answer
    x = 10,937.61

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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.