Home / 19,887.36-29,844.78-8,200.62

Finding the Fourth Proportional to 19,887.36, 29,844.78 and 8,200.62

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Solution

The fourth proportional to 19,887.36, 29,844.78 and 8,200.62 is: 12,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.36 : 29,844.78 = 8,200.62 : x
  2. Step 2: Convert to fraction form
    19,887.36/29,844.78 = 8,200.62/x
  3. Step 3: Cross multiply
    19,887.36x = 29,844.78 × 8,200.62
  4. Step 4: Simplify right side
    19,887.36x = 244,745,699.76
  5. Step 5: Solve for x
    x = 244,745,699.76/19,887.36
  6. Step 6: Final answer
    x = 12,306.60

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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.