Home / 13,317.27-18,378.37-7,653.79

Finding the Fourth Proportional to 13,317.27, 18,378.37 and 7,653.79

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Solution

The fourth proportional to 13,317.27, 18,378.37 and 7,653.79 is: 10,562.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.27 : 18,378.37 = 7,653.79 : x
  2. Step 2: Convert to fraction form
    13,317.27/18,378.37 = 7,653.79/x
  3. Step 3: Cross multiply
    13,317.27x = 18,378.37 × 7,653.79
  4. Step 4: Simplify right side
    13,317.27x = 140,664,217.06
  5. Step 5: Solve for x
    x = 140,664,217.06/13,317.27
  6. Step 6: Final answer
    x = 10,562.54

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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.