Home / 18,864.32-28,274.40-7,757.33

Finding the Fourth Proportional to 18,864.32, 28,274.40 and 7,757.33

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Solution

The fourth proportional to 18,864.32, 28,274.40 and 7,757.33 is: 11,626.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.32 : 28,274.40 = 7,757.33 : x
  2. Step 2: Convert to fraction form
    18,864.32/28,274.40 = 7,757.33/x
  3. Step 3: Cross multiply
    18,864.32x = 28,274.40 × 7,757.33
  4. Step 4: Simplify right side
    18,864.32x = 219,333,709.98
  5. Step 5: Solve for x
    x = 219,333,709.98/18,864.32
  6. Step 6: Final answer
    x = 11,626.91

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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.