Home / 10,624.28-15,943.68-3,698.78

Finding the Fourth Proportional to 10,624.28, 15,943.68 and 3,698.78

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Solution

The fourth proportional to 10,624.28, 15,943.68 and 3,698.78 is: 5,550.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,624.28 : 15,943.68 = 3,698.78 : x
  2. Step 2: Convert to fraction form
    10,624.28/15,943.68 = 3,698.78/x
  3. Step 3: Cross multiply
    10,624.28x = 15,943.68 × 3,698.78
  4. Step 4: Simplify right side
    10,624.28x = 58,972,164.71
  5. Step 5: Solve for x
    x = 58,972,164.71/10,624.28
  6. Step 6: Final answer
    x = 5,550.70

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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.