Home / 11,284.23-15,555.92-7,916.61

Finding the Fourth Proportional to 11,284.23, 15,555.92 and 7,916.61

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Solution

The fourth proportional to 11,284.23, 15,555.92 and 7,916.61 is: 10,913.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,284.23 : 15,555.92 = 7,916.61 : x
  2. Step 2: Convert to fraction form
    11,284.23/15,555.92 = 7,916.61/x
  3. Step 3: Cross multiply
    11,284.23x = 15,555.92 × 7,916.61
  4. Step 4: Simplify right side
    11,284.23x = 123,150,112.25
  5. Step 5: Solve for x
    x = 123,150,112.25/11,284.23
  6. Step 6: Final answer
    x = 10,913.47

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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.