Home / 13,387.96-18,475.92-7,723.48

Finding the Fourth Proportional to 13,387.96, 18,475.92 and 7,723.48

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Solution

The fourth proportional to 13,387.96, 18,475.92 and 7,723.48 is: 10,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.96 : 18,475.92 = 7,723.48 : x
  2. Step 2: Convert to fraction form
    13,387.96/18,475.92 = 7,723.48/x
  3. Step 3: Cross multiply
    13,387.96x = 18,475.92 × 7,723.48
  4. Step 4: Simplify right side
    13,387.96x = 142,698,398.60
  5. Step 5: Solve for x
    x = 142,698,398.60/13,387.96
  6. Step 6: Final answer
    x = 10,658.71

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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.