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Finding the Fourth Proportional to 12,259.62, 18,392.51 and 3,494.54

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Solution

The fourth proportional to 12,259.62, 18,392.51 and 3,494.54 is: 5,242.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259.62 : 18,392.51 = 3,494.54 : x
  2. Step 2: Convert to fraction form
    12,259.62/18,392.51 = 3,494.54/x
  3. Step 3: Cross multiply
    12,259.62x = 18,392.51 × 3,494.54
  4. Step 4: Simplify right side
    12,259.62x = 64,273,416.61
  5. Step 5: Solve for x
    x = 64,273,416.61/12,259.62
  6. Step 6: Final answer
    x = 5,242.69

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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.