Home / 12,535.21-18,808.94-8,861.05

Finding the Fourth Proportional to 12,535.21, 18,808.94 and 8,861.05

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Solution

The fourth proportional to 12,535.21, 18,808.94 and 8,861.05 is: 13,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.21 : 18,808.94 = 8,861.05 : x
  2. Step 2: Convert to fraction form
    12,535.21/18,808.94 = 8,861.05/x
  3. Step 3: Cross multiply
    12,535.21x = 18,808.94 × 8,861.05
  4. Step 4: Simplify right side
    12,535.21x = 166,666,957.79
  5. Step 5: Solve for x
    x = 166,666,957.79/12,535.21
  6. Step 6: Final answer
    x = 13,295.90

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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.