Home / 13,119.06-18,103.68-7,453.02

Finding the Fourth Proportional to 13,119.06, 18,103.68 and 7,453.02

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Solution

The fourth proportional to 13,119.06, 18,103.68 and 7,453.02 is: 10,284.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.06 : 18,103.68 = 7,453.02 : x
  2. Step 2: Convert to fraction form
    13,119.06/18,103.68 = 7,453.02/x
  3. Step 3: Cross multiply
    13,119.06x = 18,103.68 × 7,453.02
  4. Step 4: Simplify right side
    13,119.06x = 134,927,089.11
  5. Step 5: Solve for x
    x = 134,927,089.11/13,119.06
  6. Step 6: Final answer
    x = 10,284.81

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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.