Home / 12,282.78-16,948.62-6,905.58

Finding the Fourth Proportional to 12,282.78, 16,948.62 and 6,905.58

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Solution

The fourth proportional to 12,282.78, 16,948.62 and 6,905.58 is: 9,528.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.78 : 16,948.62 = 6,905.58 : x
  2. Step 2: Convert to fraction form
    12,282.78/16,948.62 = 6,905.58/x
  3. Step 3: Cross multiply
    12,282.78x = 16,948.62 × 6,905.58
  4. Step 4: Simplify right side
    12,282.78x = 117,040,051.30
  5. Step 5: Solve for x
    x = 117,040,051.30/12,282.78
  6. Step 6: Final answer
    x = 9,528.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.