Home / 13,313.24-18,366.44-8,770.05

Finding the Fourth Proportional to 13,313.24, 18,366.44 and 8,770.05

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Solution

The fourth proportional to 13,313.24, 18,366.44 and 8,770.05 is: 12,098.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.24 : 18,366.44 = 8,770.05 : x
  2. Step 2: Convert to fraction form
    13,313.24/18,366.44 = 8,770.05/x
  3. Step 3: Cross multiply
    13,313.24x = 18,366.44 × 8,770.05
  4. Step 4: Simplify right side
    13,313.24x = 161,074,505.29
  5. Step 5: Solve for x
    x = 161,074,505.29/13,313.24
  6. Step 6: Final answer
    x = 12,098.83

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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.