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Finding the Fourth Proportional to 43,563.69, 65,345.52 and 12,398.94

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Solution

The fourth proportional to 43,563.69, 65,345.52 and 12,398.94 is: 18,598.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,563.69 : 65,345.52 = 12,398.94 : x
  2. Step 2: Convert to fraction form
    43,563.69/65,345.52 = 12,398.94/x
  3. Step 3: Cross multiply
    43,563.69x = 65,345.52 × 12,398.94
  4. Step 4: Simplify right side
    43,563.69x = 810,215,181.75
  5. Step 5: Solve for x
    x = 810,215,181.75/43,563.69
  6. Step 6: Final answer
    x = 18,598.41

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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.