Home / 11,273.18-16,916.79-5,430.38

Finding the Fourth Proportional to 11,273.18, 16,916.79 and 5,430.38

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Solution

The fourth proportional to 11,273.18, 16,916.79 and 5,430.38 is: 8,148.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,273.18 : 16,916.79 = 5,430.38 : x
  2. Step 2: Convert to fraction form
    11,273.18/16,916.79 = 5,430.38/x
  3. Step 3: Cross multiply
    11,273.18x = 16,916.79 × 5,430.38
  4. Step 4: Simplify right side
    11,273.18x = 91,864,598.08
  5. Step 5: Solve for x
    x = 91,864,598.08/11,273.18
  6. Step 6: Final answer
    x = 8,148.95

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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.