Home / 10,861.16-16,280.64-4,278.29

Finding the Fourth Proportional to 10,861.16, 16,280.64 and 4,278.29

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Solution

The fourth proportional to 10,861.16, 16,280.64 and 4,278.29 is: 6,413.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.16 : 16,280.64 = 4,278.29 : x
  2. Step 2: Convert to fraction form
    10,861.16/16,280.64 = 4,278.29/x
  3. Step 3: Cross multiply
    10,861.16x = 16,280.64 × 4,278.29
  4. Step 4: Simplify right side
    10,861.16x = 69,653,217.90
  5. Step 5: Solve for x
    x = 69,653,217.90/10,861.16
  6. Step 6: Final answer
    x = 6,413.06

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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.