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Finding the Fourth Proportional to 12,473.64, 18,710.52 and 3,239.64

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Solution

The fourth proportional to 12,473.64, 18,710.52 and 3,239.64 is: 4,859.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.64 : 18,710.52 = 3,239.64 : x
  2. Step 2: Convert to fraction form
    12,473.64/18,710.52 = 3,239.64/x
  3. Step 3: Cross multiply
    12,473.64x = 18,710.52 × 3,239.64
  4. Step 4: Simplify right side
    12,473.64x = 60,615,349.01
  5. Step 5: Solve for x
    x = 60,615,349.01/12,473.64
  6. Step 6: Final answer
    x = 4,859.48

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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.