Home / 13,723.61-20,566.85-6,311.70

Finding the Fourth Proportional to 13,723.61, 20,566.85 and 6,311.70

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Solution

The fourth proportional to 13,723.61, 20,566.85 and 6,311.70 is: 9,459.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.61 : 20,566.85 = 6,311.70 : x
  2. Step 2: Convert to fraction form
    13,723.61/20,566.85 = 6,311.70/x
  3. Step 3: Cross multiply
    13,723.61x = 20,566.85 × 6,311.70
  4. Step 4: Simplify right side
    13,723.61x = 129,811,755.59
  5. Step 5: Solve for x
    x = 129,811,755.59/13,723.61
  6. Step 6: Final answer
    x = 9,459.01

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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.