Home / 8,886.18-13,382.01-7,912.97

Finding the Fourth Proportional to 8,886.18, 13,382.01 and 7,912.97

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Solution

The fourth proportional to 8,886.18, 13,382.01 and 7,912.97 is: 11,916.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.18 : 13,382.01 = 7,912.97 : x
  2. Step 2: Convert to fraction form
    8,886.18/13,382.01 = 7,912.97/x
  3. Step 3: Cross multiply
    8,886.18x = 13,382.01 × 7,912.97
  4. Step 4: Simplify right side
    8,886.18x = 105,891,397.27
  5. Step 5: Solve for x
    x = 105,891,397.27/8,886.18
  6. Step 6: Final answer
    x = 11,916.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.