Home / 13,609.75-20,409.45-8,064.66

Finding the Fourth Proportional to 13,609.75, 20,409.45 and 8,064.66

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Solution

The fourth proportional to 13,609.75, 20,409.45 and 8,064.66 is: 12,093.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.75 : 20,409.45 = 8,064.66 : x
  2. Step 2: Convert to fraction form
    13,609.75/20,409.45 = 8,064.66/x
  3. Step 3: Cross multiply
    13,609.75x = 20,409.45 × 8,064.66
  4. Step 4: Simplify right side
    13,609.75x = 164,595,275.04
  5. Step 5: Solve for x
    x = 164,595,275.04/13,609.75
  6. Step 6: Final answer
    x = 12,093.92

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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.