Home / 13,372.96-18,457.71-8,336.20

Finding the Fourth Proportional to 13,372.96, 18,457.71 and 8,336.20

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Solution

The fourth proportional to 13,372.96, 18,457.71 and 8,336.20 is: 11,505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.96 : 18,457.71 = 8,336.20 : x
  2. Step 2: Convert to fraction form
    13,372.96/18,457.71 = 8,336.20/x
  3. Step 3: Cross multiply
    13,372.96x = 18,457.71 × 8,336.20
  4. Step 4: Simplify right side
    13,372.96x = 153,867,236.46
  5. Step 5: Solve for x
    x = 153,867,236.46/13,372.96
  6. Step 6: Final answer
    x = 11,505.85

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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.