Home / 12,141.19-18,213.70-4,245.89

Finding the Fourth Proportional to 12,141.19, 18,213.70 and 4,245.89

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Solution

The fourth proportional to 12,141.19, 18,213.70 and 4,245.89 is: 6,369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.19 : 18,213.70 = 4,245.89 : x
  2. Step 2: Convert to fraction form
    12,141.19/18,213.70 = 4,245.89/x
  3. Step 3: Cross multiply
    12,141.19x = 18,213.70 × 4,245.89
  4. Step 4: Simplify right side
    12,141.19x = 77,333,366.69
  5. Step 5: Solve for x
    x = 77,333,366.69/12,141.19
  6. Step 6: Final answer
    x = 6,369.50

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Half scale
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Double scale
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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.