Home / 18,744.21-28,117.53-9,381.42

Finding the Fourth Proportional to 18,744.21, 28,117.53 and 9,381.42

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Solution

The fourth proportional to 18,744.21, 28,117.53 and 9,381.42 is: 14,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744.21 : 28,117.53 = 9,381.42 : x
  2. Step 2: Convert to fraction form
    18,744.21/28,117.53 = 9,381.42/x
  3. Step 3: Cross multiply
    18,744.21x = 28,117.53 × 9,381.42
  4. Step 4: Simplify right side
    18,744.21x = 263,782,358.29
  5. Step 5: Solve for x
    x = 263,782,358.29/18,744.21
  6. Step 6: Final answer
    x = 14,072.74

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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.