Home / 13,475.07-18,596.72-7,811.75

Finding the Fourth Proportional to 13,475.07, 18,596.72 and 7,811.75

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Solution

The fourth proportional to 13,475.07, 18,596.72 and 7,811.75 is: 10,780.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.07 : 18,596.72 = 7,811.75 : x
  2. Step 2: Convert to fraction form
    13,475.07/18,596.72 = 7,811.75/x
  3. Step 3: Cross multiply
    13,475.07x = 18,596.72 × 7,811.75
  4. Step 4: Simplify right side
    13,475.07x = 145,272,993.48
  5. Step 5: Solve for x
    x = 145,272,993.48/13,475.07
  6. Step 6: Final answer
    x = 10,780.87

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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.