Home / 13,304.40-19,956.60-8,314.80

Finding the Fourth Proportional to 13,304.40, 19,956.60 and 8,314.80

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Solution

The fourth proportional to 13,304.40, 19,956.60 and 8,314.80 is: 12,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,304.40 : 19,956.60 = 8,314.80 : x
  2. Step 2: Convert to fraction form
    13,304.40/19,956.60 = 8,314.80/x
  3. Step 3: Cross multiply
    13,304.40x = 19,956.60 × 8,314.80
  4. Step 4: Simplify right side
    13,304.40x = 165,935,137.68
  5. Step 5: Solve for x
    x = 165,935,137.68/13,304.40
  6. Step 6: Final answer
    x = 12,472.20

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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.