Home / 13,286.71-18,334.96-7,317.25

Finding the Fourth Proportional to 13,286.71, 18,334.96 and 7,317.25

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Solution

The fourth proportional to 13,286.71, 18,334.96 and 7,317.25 is: 10,097.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.71 : 18,334.96 = 7,317.25 : x
  2. Step 2: Convert to fraction form
    13,286.71/18,334.96 = 7,317.25/x
  3. Step 3: Cross multiply
    13,286.71x = 18,334.96 × 7,317.25
  4. Step 4: Simplify right side
    13,286.71x = 134,161,421.93
  5. Step 5: Solve for x
    x = 134,161,421.93/13,286.71
  6. Step 6: Final answer
    x = 10,097.41

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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.