Home / 11,916.41-16,442.28-7,200.71

Finding the Fourth Proportional to 11,916.41, 16,442.28 and 7,200.71

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Solution

The fourth proportional to 11,916.41, 16,442.28 and 7,200.71 is: 9,935.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.41 : 16,442.28 = 7,200.71 : x
  2. Step 2: Convert to fraction form
    11,916.41/16,442.28 = 7,200.71/x
  3. Step 3: Cross multiply
    11,916.41x = 16,442.28 × 7,200.71
  4. Step 4: Simplify right side
    11,916.41x = 118,396,007.81
  5. Step 5: Solve for x
    x = 118,396,007.81/11,916.41
  6. Step 6: Final answer
    x = 9,935.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.