Home / 18,243.47-27,315.85-9,459.92

Finding the Fourth Proportional to 18,243.47, 27,315.85 and 9,459.92

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Solution

The fourth proportional to 18,243.47, 27,315.85 and 9,459.92 is: 14,164.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.47 : 27,315.85 = 9,459.92 : x
  2. Step 2: Convert to fraction form
    18,243.47/27,315.85 = 9,459.92/x
  3. Step 3: Cross multiply
    18,243.47x = 27,315.85 × 9,459.92
  4. Step 4: Simplify right side
    18,243.47x = 258,405,755.73
  5. Step 5: Solve for x
    x = 258,405,755.73/18,243.47
  6. Step 6: Final answer
    x = 14,164.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.