Home / 10,315.54-15,473.90-2,919.38

Finding the Fourth Proportional to 10,315.54, 15,473.90 and 2,919.38

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Solution

The fourth proportional to 10,315.54, 15,473.90 and 2,919.38 is: 4,379.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.54 : 15,473.90 = 2,919.38 : x
  2. Step 2: Convert to fraction form
    10,315.54/15,473.90 = 2,919.38/x
  3. Step 3: Cross multiply
    10,315.54x = 15,473.90 × 2,919.38
  4. Step 4: Simplify right side
    10,315.54x = 45,174,194.18
  5. Step 5: Solve for x
    x = 45,174,194.18/10,315.54
  6. Step 6: Final answer
    x = 4,379.24

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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.