Home / 18,674.64-28,003.68-9,907.56

Finding the Fourth Proportional to 18,674.64, 28,003.68 and 9,907.56

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Solution

The fourth proportional to 18,674.64, 28,003.68 and 9,907.56 is: 14,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.64 : 28,003.68 = 9,907.56 : x
  2. Step 2: Convert to fraction form
    18,674.64/28,003.68 = 9,907.56/x
  3. Step 3: Cross multiply
    18,674.64x = 28,003.68 × 9,907.56
  4. Step 4: Simplify right side
    18,674.64x = 277,448,139.82
  5. Step 5: Solve for x
    x = 277,448,139.82/18,674.64
  6. Step 6: Final answer
    x = 14,856.95

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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.