Home / 13,169.09-19,764.01-5,778.65

Finding the Fourth Proportional to 13,169.09, 19,764.01 and 5,778.65

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Solution

The fourth proportional to 13,169.09, 19,764.01 and 5,778.65 is: 8,672.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.09 : 19,764.01 = 5,778.65 : x
  2. Step 2: Convert to fraction form
    13,169.09/19,764.01 = 5,778.65/x
  3. Step 3: Cross multiply
    13,169.09x = 19,764.01 × 5,778.65
  4. Step 4: Simplify right side
    13,169.09x = 114,209,318.06
  5. Step 5: Solve for x
    x = 114,209,318.06/13,169.09
  6. Step 6: Final answer
    x = 8,672.53

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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.