Home / 6,861.61-9,468.03-3,876.99

Finding the Fourth Proportional to 6,861.61, 9,468.03 and 3,876.99

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Solution

The fourth proportional to 6,861.61, 9,468.03 and 3,876.99 is: 5,349.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.61 : 9,468.03 = 3,876.99 : x
  2. Step 2: Convert to fraction form
    6,861.61/9,468.03 = 3,876.99/x
  3. Step 3: Cross multiply
    6,861.61x = 9,468.03 × 3,876.99
  4. Step 4: Simplify right side
    6,861.61x = 36,707,457.63
  5. Step 5: Solve for x
    x = 36,707,457.63/6,861.61
  6. Step 6: Final answer
    x = 5,349.69

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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.