Home / 10,954.80-16,432.20-7,674.30

Finding the Fourth Proportional to 10,954.80, 16,432.20 and 7,674.30

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Solution

The fourth proportional to 10,954.80, 16,432.20 and 7,674.30 is: 11,511.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,954.80 : 16,432.20 = 7,674.30 : x
  2. Step 2: Convert to fraction form
    10,954.80/16,432.20 = 7,674.30/x
  3. Step 3: Cross multiply
    10,954.80x = 16,432.20 × 7,674.30
  4. Step 4: Simplify right side
    10,954.80x = 126,105,632.46
  5. Step 5: Solve for x
    x = 126,105,632.46/10,954.80
  6. Step 6: Final answer
    x = 11,511.45

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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.