Home / 13,446.12-18,559.62-8,407.35

Finding the Fourth Proportional to 13,446.12, 18,559.62 and 8,407.35

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Solution

The fourth proportional to 13,446.12, 18,559.62 and 8,407.35 is: 11,604.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.12 : 18,559.62 = 8,407.35 : x
  2. Step 2: Convert to fraction form
    13,446.12/18,559.62 = 8,407.35/x
  3. Step 3: Cross multiply
    13,446.12x = 18,559.62 × 8,407.35
  4. Step 4: Simplify right side
    13,446.12x = 156,037,221.21
  5. Step 5: Solve for x
    x = 156,037,221.21/13,446.12
  6. Step 6: Final answer
    x = 11,604.63

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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.