Home / 12,747.31-19,107.81-9,228.58

Finding the Fourth Proportional to 12,747.31, 19,107.81 and 9,228.58

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Solution

The fourth proportional to 12,747.31, 19,107.81 and 9,228.58 is: 13,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.31 : 19,107.81 = 9,228.58 : x
  2. Step 2: Convert to fraction form
    12,747.31/19,107.81 = 9,228.58/x
  3. Step 3: Cross multiply
    12,747.31x = 19,107.81 × 9,228.58
  4. Step 4: Simplify right side
    12,747.31x = 176,337,905.44
  5. Step 5: Solve for x
    x = 176,337,905.44/12,747.31
  6. Step 6: Final answer
    x = 13,833.35

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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.