Home / 12,860.61-19,286.02-4,539.08

Finding the Fourth Proportional to 12,860.61, 19,286.02 and 4,539.08

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Solution

The fourth proportional to 12,860.61, 19,286.02 and 4,539.08 is: 6,806.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,860.61 : 19,286.02 = 4,539.08 : x
  2. Step 2: Convert to fraction form
    12,860.61/19,286.02 = 4,539.08/x
  3. Step 3: Cross multiply
    12,860.61x = 19,286.02 × 4,539.08
  4. Step 4: Simplify right side
    12,860.61x = 87,540,787.66
  5. Step 5: Solve for x
    x = 87,540,787.66/12,860.61
  6. Step 6: Final answer
    x = 6,806.89

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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.