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Finding the Fourth Proportional to 10,861.48, 16,290.48 and 3,070.84

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Solution

The fourth proportional to 10,861.48, 16,290.48 and 3,070.84 is: 4,605.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.48 : 16,290.48 = 3,070.84 : x
  2. Step 2: Convert to fraction form
    10,861.48/16,290.48 = 3,070.84/x
  3. Step 3: Cross multiply
    10,861.48x = 16,290.48 × 3,070.84
  4. Step 4: Simplify right side
    10,861.48x = 50,025,457.60
  5. Step 5: Solve for x
    x = 50,025,457.60/10,861.48
  6. Step 6: Final answer
    x = 4,605.77

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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.