Home / 13,231.29-18,259.05-7,262.88

Finding the Fourth Proportional to 13,231.29, 18,259.05 and 7,262.88

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Solution

The fourth proportional to 13,231.29, 18,259.05 and 7,262.88 is: 10,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.29 : 18,259.05 = 7,262.88 : x
  2. Step 2: Convert to fraction form
    13,231.29/18,259.05 = 7,262.88/x
  3. Step 3: Cross multiply
    13,231.29x = 18,259.05 × 7,262.88
  4. Step 4: Simplify right side
    13,231.29x = 132,613,289.06
  5. Step 5: Solve for x
    x = 132,613,289.06/13,231.29
  6. Step 6: Final answer
    x = 10,022.70

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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.