Home / 18,110.67-25,007.18-12,147.45

Finding the Fourth Proportional to 18,110.67, 25,007.18 and 12,147.45

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Solution

The fourth proportional to 18,110.67, 25,007.18 and 12,147.45 is: 16,773.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.67 : 25,007.18 = 12,147.45 : x
  2. Step 2: Convert to fraction form
    18,110.67/25,007.18 = 12,147.45/x
  3. Step 3: Cross multiply
    18,110.67x = 25,007.18 × 12,147.45
  4. Step 4: Simplify right side
    18,110.67x = 303,773,407.95
  5. Step 5: Solve for x
    x = 303,773,407.95/18,110.67
  6. Step 6: Final answer
    x = 16,773.17

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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.