Home / 18,669.40-25,761.45-12,632.83

Finding the Fourth Proportional to 18,669.40, 25,761.45 and 12,632.83

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Solution

The fourth proportional to 18,669.40, 25,761.45 and 12,632.83 is: 17,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.40 : 25,761.45 = 12,632.83 : x
  2. Step 2: Convert to fraction form
    18,669.40/25,761.45 = 12,632.83/x
  3. Step 3: Cross multiply
    18,669.40x = 25,761.45 × 12,632.83
  4. Step 4: Simplify right side
    18,669.40x = 325,440,018.40
  5. Step 5: Solve for x
    x = 325,440,018.40/18,669.40
  6. Step 6: Final answer
    x = 17,431.73

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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.