Home / 18,952.84-28,395.21-11,157.40

Finding the Fourth Proportional to 18,952.84, 28,395.21 and 11,157.40

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Solution

The fourth proportional to 18,952.84, 28,395.21 and 11,157.40 is: 16,716.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.84 : 28,395.21 = 11,157.40 : x
  2. Step 2: Convert to fraction form
    18,952.84/28,395.21 = 11,157.40/x
  3. Step 3: Cross multiply
    18,952.84x = 28,395.21 × 11,157.40
  4. Step 4: Simplify right side
    18,952.84x = 316,816,716.05
  5. Step 5: Solve for x
    x = 316,816,716.05/18,952.84
  6. Step 6: Final answer
    x = 16,716.06

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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.