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Finding the Fourth Proportional to 8,776.55, 13,166.40 and 4,615.40

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Solution

The fourth proportional to 8,776.55, 13,166.40 and 4,615.40 is: 6,923.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.55 : 13,166.40 = 4,615.40 : x
  2. Step 2: Convert to fraction form
    8,776.55/13,166.40 = 4,615.40/x
  3. Step 3: Cross multiply
    8,776.55x = 13,166.40 × 4,615.40
  4. Step 4: Simplify right side
    8,776.55x = 60,768,202.56
  5. Step 5: Solve for x
    x = 60,768,202.56/8,776.55
  6. Step 6: Final answer
    x = 6,923.93

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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.