Home / 10,861.30-16,297.35-4,287.70

Finding the Fourth Proportional to 10,861.30, 16,297.35 and 4,287.70

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Solution

The fourth proportional to 10,861.30, 16,297.35 and 4,287.70 is: 6,433.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.30 : 16,297.35 = 4,287.70 : x
  2. Step 2: Convert to fraction form
    10,861.30/16,297.35 = 4,287.70/x
  3. Step 3: Cross multiply
    10,861.30x = 16,297.35 × 4,287.70
  4. Step 4: Simplify right side
    10,861.30x = 69,878,147.60
  5. Step 5: Solve for x
    x = 69,878,147.60/10,861.30
  6. Step 6: Final answer
    x = 6,433.68

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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.