Home / 19,787.40-27,306.60-11,829.60

Finding the Fourth Proportional to 19,787.40, 27,306.60 and 11,829.60

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Solution

The fourth proportional to 19,787.40, 27,306.60 and 11,829.60 is: 16,324.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.40 : 27,306.60 = 11,829.60 : x
  2. Step 2: Convert to fraction form
    19,787.40/27,306.60 = 11,829.60/x
  3. Step 3: Cross multiply
    19,787.40x = 27,306.60 × 11,829.60
  4. Step 4: Simplify right side
    19,787.40x = 323,026,155.36
  5. Step 5: Solve for x
    x = 323,026,155.36/19,787.40
  6. Step 6: Final answer
    x = 16,324.84

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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.