Home / 13,253.15-18,289.26-7,284.68

Finding the Fourth Proportional to 13,253.15, 18,289.26 and 7,284.68

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Solution

The fourth proportional to 13,253.15, 18,289.26 and 7,284.68 is: 10,052.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.15 : 18,289.26 = 7,284.68 : x
  2. Step 2: Convert to fraction form
    13,253.15/18,289.26 = 7,284.68/x
  3. Step 3: Cross multiply
    13,253.15x = 18,289.26 × 7,284.68
  4. Step 4: Simplify right side
    13,253.15x = 133,231,406.54
  5. Step 5: Solve for x
    x = 133,231,406.54/13,253.15
  6. Step 6: Final answer
    x = 10,052.81

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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.