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Finding the Fourth Proportional to 8,960.85, 12,365.93 and 4,981.73

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Solution

The fourth proportional to 8,960.85, 12,365.93 and 4,981.73 is: 6,874.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.85 : 12,365.93 = 4,981.73 : x
  2. Step 2: Convert to fraction form
    8,960.85/12,365.93 = 4,981.73/x
  3. Step 3: Cross multiply
    8,960.85x = 12,365.93 × 4,981.73
  4. Step 4: Simplify right side
    8,960.85x = 61,603,675.08
  5. Step 5: Solve for x
    x = 61,603,675.08/8,960.85
  6. Step 6: Final answer
    x = 6,874.76

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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.