Home / 10,379.81-15,578.02-5,452.36

Finding the Fourth Proportional to 10,379.81, 15,578.02 and 5,452.36

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Solution

The fourth proportional to 10,379.81, 15,578.02 and 5,452.36 is: 8,182.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.81 : 15,578.02 = 5,452.36 : x
  2. Step 2: Convert to fraction form
    10,379.81/15,578.02 = 5,452.36/x
  3. Step 3: Cross multiply
    10,379.81x = 15,578.02 × 5,452.36
  4. Step 4: Simplify right side
    10,379.81x = 84,936,895.24
  5. Step 5: Solve for x
    x = 84,936,895.24/10,379.81
  6. Step 6: Final answer
    x = 8,182.89

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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.