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Finding the Fourth Proportional to 8,674.77, 13,000.80 and 3,484.29

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Solution

The fourth proportional to 8,674.77, 13,000.80 and 3,484.29 is: 5,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.77 : 13,000.80 = 3,484.29 : x
  2. Step 2: Convert to fraction form
    8,674.77/13,000.80 = 3,484.29/x
  3. Step 3: Cross multiply
    8,674.77x = 13,000.80 × 3,484.29
  4. Step 4: Simplify right side
    8,674.77x = 45,298,557.43
  5. Step 5: Solve for x
    x = 45,298,557.43/8,674.77
  6. Step 6: Final answer
    x = 5,221.87

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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.