Home / 12,842.40-19,266.12-5,446.80

Finding the Fourth Proportional to 12,842.40, 19,266.12 and 5,446.80

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Solution

The fourth proportional to 12,842.40, 19,266.12 and 5,446.80 is: 8,171.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,842.40 : 19,266.12 = 5,446.80 : x
  2. Step 2: Convert to fraction form
    12,842.40/19,266.12 = 5,446.80/x
  3. Step 3: Cross multiply
    12,842.40x = 19,266.12 × 5,446.80
  4. Step 4: Simplify right side
    12,842.40x = 104,938,702.42
  5. Step 5: Solve for x
    x = 104,938,702.42/12,842.40
  6. Step 6: Final answer
    x = 8,171.27

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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.