Home / 10,980.20-16,475.70-8,346.80

Finding the Fourth Proportional to 10,980.20, 16,475.70 and 8,346.80

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Solution

The fourth proportional to 10,980.20, 16,475.70 and 8,346.80 is: 12,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.20 : 16,475.70 = 8,346.80 : x
  2. Step 2: Convert to fraction form
    10,980.20/16,475.70 = 8,346.80/x
  3. Step 3: Cross multiply
    10,980.20x = 16,475.70 × 8,346.80
  4. Step 4: Simplify right side
    10,980.20x = 137,519,372.76
  5. Step 5: Solve for x
    x = 137,519,372.76/10,980.20
  6. Step 6: Final answer
    x = 12,524.30

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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.