Home / 13,475.79-18,596.61-7,811.64

Finding the Fourth Proportional to 13,475.79, 18,596.61 and 7,811.64

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Solution

The fourth proportional to 13,475.79, 18,596.61 and 7,811.64 is: 10,780.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.79 : 18,596.61 = 7,811.64 : x
  2. Step 2: Convert to fraction form
    13,475.79/18,596.61 = 7,811.64/x
  3. Step 3: Cross multiply
    13,475.79x = 18,596.61 × 7,811.64
  4. Step 4: Simplify right side
    13,475.79x = 145,270,022.54
  5. Step 5: Solve for x
    x = 145,270,022.54/13,475.79
  6. Step 6: Final answer
    x = 10,780.07

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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.