Home / 10,631.44-15,948.78-5,435.56

Finding the Fourth Proportional to 10,631.44, 15,948.78 and 5,435.56

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Solution

The fourth proportional to 10,631.44, 15,948.78 and 5,435.56 is: 8,154.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,631.44 : 15,948.78 = 5,435.56 : x
  2. Step 2: Convert to fraction form
    10,631.44/15,948.78 = 5,435.56/x
  3. Step 3: Cross multiply
    10,631.44x = 15,948.78 × 5,435.56
  4. Step 4: Simplify right side
    10,631.44x = 86,690,550.62
  5. Step 5: Solve for x
    x = 86,690,550.62/10,631.44
  6. Step 6: Final answer
    x = 8,154.17

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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.