Home / 10,465.38-15,684.03-5,529.78

Finding the Fourth Proportional to 10,465.38, 15,684.03 and 5,529.78

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Solution

The fourth proportional to 10,465.38, 15,684.03 and 5,529.78 is: 8,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,465.38 : 15,684.03 = 5,529.78 : x
  2. Step 2: Convert to fraction form
    10,465.38/15,684.03 = 5,529.78/x
  3. Step 3: Cross multiply
    10,465.38x = 15,684.03 × 5,529.78
  4. Step 4: Simplify right side
    10,465.38x = 86,729,235.41
  5. Step 5: Solve for x
    x = 86,729,235.41/10,465.38
  6. Step 6: Final answer
    x = 8,287.25

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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.