Home / 12,774.84-19,167.30-8,391.48

Finding the Fourth Proportional to 12,774.84, 19,167.30 and 8,391.48

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Solution

The fourth proportional to 12,774.84, 19,167.30 and 8,391.48 is: 12,590.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,774.84 : 19,167.30 = 8,391.48 : x
  2. Step 2: Convert to fraction form
    12,774.84/19,167.30 = 8,391.48/x
  3. Step 3: Cross multiply
    12,774.84x = 19,167.30 × 8,391.48
  4. Step 4: Simplify right side
    12,774.84x = 160,842,014.60
  5. Step 5: Solve for x
    x = 160,842,014.60/12,774.84
  6. Step 6: Final answer
    x = 12,590.53

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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.