Home / 13,263.50-18,311.21-8,793.32

Finding the Fourth Proportional to 13,263.50, 18,311.21 and 8,793.32

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Solution

The fourth proportional to 13,263.50, 18,311.21 and 8,793.32 is: 12,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.50 : 18,311.21 = 8,793.32 : x
  2. Step 2: Convert to fraction form
    13,263.50/18,311.21 = 8,793.32/x
  3. Step 3: Cross multiply
    13,263.50x = 18,311.21 × 8,793.32
  4. Step 4: Simplify right side
    13,263.50x = 161,016,193.59
  5. Step 5: Solve for x
    x = 161,016,193.59/13,263.50
  6. Step 6: Final answer
    x = 12,139.80

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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.