Home / 10,243.84-15,365.56-3,318.36

Finding the Fourth Proportional to 10,243.84, 15,365.56 and 3,318.36

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Solution

The fourth proportional to 10,243.84, 15,365.56 and 3,318.36 is: 4,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.84 : 15,365.56 = 3,318.36 : x
  2. Step 2: Convert to fraction form
    10,243.84/15,365.56 = 3,318.36/x
  3. Step 3: Cross multiply
    10,243.84x = 15,365.56 × 3,318.36
  4. Step 4: Simplify right side
    10,243.84x = 50,988,459.68
  5. Step 5: Solve for x
    x = 50,988,459.68/10,243.84
  6. Step 6: Final answer
    x = 4,977.48

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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.