Home / 10,318.78-15,484.86-3,744.40

Finding the Fourth Proportional to 10,318.78, 15,484.86 and 3,744.40

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Solution

The fourth proportional to 10,318.78, 15,484.86 and 3,744.40 is: 5,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.78 : 15,484.86 = 3,744.40 : x
  2. Step 2: Convert to fraction form
    10,318.78/15,484.86 = 3,744.40/x
  3. Step 3: Cross multiply
    10,318.78x = 15,484.86 × 3,744.40
  4. Step 4: Simplify right side
    10,318.78x = 57,981,509.78
  5. Step 5: Solve for x
    x = 57,981,509.78/10,318.78
  6. Step 6: Final answer
    x = 5,619.03

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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.