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Finding the Fourth Proportional to 12,348, 18,522.72 and 4,956.48

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Solution

The fourth proportional to 12,348, 18,522.72 and 4,956.48 is: 7,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348 : 18,522.72 = 4,956.48 : x
  2. Step 2: Convert to fraction form
    12,348/18,522.72 = 4,956.48/x
  3. Step 3: Cross multiply
    12,348x = 18,522.72 × 4,956.48
  4. Step 4: Simplify right side
    12,348x = 91,807,491.23
  5. Step 5: Solve for x
    x = 91,807,491.23/12,348
  6. Step 6: Final answer
    x = 7,435.01

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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.