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Finding the Fourth Proportional to 10,719.03, 16,082.88 and 4,878.39

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Solution

The fourth proportional to 10,719.03, 16,082.88 and 4,878.39 is: 7,319.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.03 : 16,082.88 = 4,878.39 : x
  2. Step 2: Convert to fraction form
    10,719.03/16,082.88 = 4,878.39/x
  3. Step 3: Cross multiply
    10,719.03x = 16,082.88 × 4,878.39
  4. Step 4: Simplify right side
    10,719.03x = 78,458,560.96
  5. Step 5: Solve for x
    x = 78,458,560.96/10,719.03
  6. Step 6: Final answer
    x = 7,319.56

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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.