Home / 12,526.12-18,787.15-3,759.49

Finding the Fourth Proportional to 12,526.12, 18,787.15 and 3,759.49

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Solution

The fourth proportional to 12,526.12, 18,787.15 and 3,759.49 is: 5,638.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.12 : 18,787.15 = 3,759.49 : x
  2. Step 2: Convert to fraction form
    12,526.12/18,787.15 = 3,759.49/x
  3. Step 3: Cross multiply
    12,526.12x = 18,787.15 × 3,759.49
  4. Step 4: Simplify right side
    12,526.12x = 70,630,046.19
  5. Step 5: Solve for x
    x = 70,630,046.19/12,526.12
  6. Step 6: Final answer
    x = 5,638.62

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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.