Home / 12,871.44-19,306.92-8,645.04

Finding the Fourth Proportional to 12,871.44, 19,306.92 and 8,645.04

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Solution

The fourth proportional to 12,871.44, 19,306.92 and 8,645.04 is: 12,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.44 : 19,306.92 = 8,645.04 : x
  2. Step 2: Convert to fraction form
    12,871.44/19,306.92 = 8,645.04/x
  3. Step 3: Cross multiply
    12,871.44x = 19,306.92 × 8,645.04
  4. Step 4: Simplify right side
    12,871.44x = 166,909,095.68
  5. Step 5: Solve for x
    x = 166,909,095.68/12,871.44
  6. Step 6: Final answer
    x = 12,967.40

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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.