Home / 14,981.38-20,674.06-8,175.34

Finding the Fourth Proportional to 14,981.38, 20,674.06 and 8,175.34

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Solution

The fourth proportional to 14,981.38, 20,674.06 and 8,175.34 is: 11,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.38 : 20,674.06 = 8,175.34 : x
  2. Step 2: Convert to fraction form
    14,981.38/20,674.06 = 8,175.34/x
  3. Step 3: Cross multiply
    14,981.38x = 20,674.06 × 8,175.34
  4. Step 4: Simplify right side
    14,981.38x = 169,017,469.68
  5. Step 5: Solve for x
    x = 169,017,469.68/14,981.38
  6. Step 6: Final answer
    x = 11,281.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.