Home / 13,176.96-18,191.72-8,713.65

Finding the Fourth Proportional to 13,176.96, 18,191.72 and 8,713.65

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Solution

The fourth proportional to 13,176.96, 18,191.72 and 8,713.65 is: 12,029.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.96 : 18,191.72 = 8,713.65 : x
  2. Step 2: Convert to fraction form
    13,176.96/18,191.72 = 8,713.65/x
  3. Step 3: Cross multiply
    13,176.96x = 18,191.72 × 8,713.65
  4. Step 4: Simplify right side
    13,176.96x = 158,516,280.98
  5. Step 5: Solve for x
    x = 158,516,280.98/13,176.96
  6. Step 6: Final answer
    x = 12,029.81

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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.