Home / 18,857.94-28,279.90-5,527.51

Finding the Fourth Proportional to 18,857.94, 28,279.90 and 5,527.51

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Solution

The fourth proportional to 18,857.94, 28,279.90 and 5,527.51 is: 8,289.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.94 : 28,279.90 = 5,527.51 : x
  2. Step 2: Convert to fraction form
    18,857.94/28,279.90 = 5,527.51/x
  3. Step 3: Cross multiply
    18,857.94x = 28,279.90 × 5,527.51
  4. Step 4: Simplify right side
    18,857.94x = 156,317,437.57
  5. Step 5: Solve for x
    x = 156,317,437.57/18,857.94
  6. Step 6: Final answer
    x = 8,289.21

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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.