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Finding the Fourth Proportional to 6,861.53, 9,468.83 and 4,028.40

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Solution

The fourth proportional to 6,861.53, 9,468.83 and 4,028.40 is: 5,559.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.53 : 9,468.83 = 4,028.40 : x
  2. Step 2: Convert to fraction form
    6,861.53/9,468.83 = 4,028.40/x
  3. Step 3: Cross multiply
    6,861.53x = 9,468.83 × 4,028.40
  4. Step 4: Simplify right side
    6,861.53x = 38,144,214.63
  5. Step 5: Solve for x
    x = 38,144,214.63/6,861.53
  6. Step 6: Final answer
    x = 5,559.15

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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.