Home / 12,204.64-18,307.62-3,885.32

Finding the Fourth Proportional to 12,204.64, 18,307.62 and 3,885.32

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Solution

The fourth proportional to 12,204.64, 18,307.62 and 3,885.32 is: 5,828.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.64 : 18,307.62 = 3,885.32 : x
  2. Step 2: Convert to fraction form
    12,204.64/18,307.62 = 3,885.32/x
  3. Step 3: Cross multiply
    12,204.64x = 18,307.62 × 3,885.32
  4. Step 4: Simplify right side
    12,204.64x = 71,130,962.14
  5. Step 5: Solve for x
    x = 71,130,962.14/12,204.64
  6. Step 6: Final answer
    x = 5,828.19

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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.