Home / 18,310.42-27,441.70-9,988.20

Finding the Fourth Proportional to 18,310.42, 27,441.70 and 9,988.20

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Solution

The fourth proportional to 18,310.42, 27,441.70 and 9,988.20 is: 14,969.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.42 : 27,441.70 = 9,988.20 : x
  2. Step 2: Convert to fraction form
    18,310.42/27,441.70 = 9,988.20/x
  3. Step 3: Cross multiply
    18,310.42x = 27,441.70 × 9,988.20
  4. Step 4: Simplify right side
    18,310.42x = 274,093,162.97
  5. Step 5: Solve for x
    x = 274,093,162.97/18,310.42
  6. Step 6: Final answer
    x = 14,969.24

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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.