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Finding the Fourth Proportional to 8,969.80, 13,459.40 and 6,524.84

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Solution

The fourth proportional to 8,969.80, 13,459.40 and 6,524.84 is: 9,790.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.80 : 13,459.40 = 6,524.84 : x
  2. Step 2: Convert to fraction form
    8,969.80/13,459.40 = 6,524.84/x
  3. Step 3: Cross multiply
    8,969.80x = 13,459.40 × 6,524.84
  4. Step 4: Simplify right side
    8,969.80x = 87,820,431.50
  5. Step 5: Solve for x
    x = 87,820,431.50/8,969.80
  6. Step 6: Final answer
    x = 9,790.68

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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.