Home / 11,665.56-17,478.90-8,895.36

Finding the Fourth Proportional to 11,665.56, 17,478.90 and 8,895.36

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Solution

The fourth proportional to 11,665.56, 17,478.90 and 8,895.36 is: 13,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,665.56 : 17,478.90 = 8,895.36 : x
  2. Step 2: Convert to fraction form
    11,665.56/17,478.90 = 8,895.36/x
  3. Step 3: Cross multiply
    11,665.56x = 17,478.90 × 8,895.36
  4. Step 4: Simplify right side
    11,665.56x = 155,481,107.90
  5. Step 5: Solve for x
    x = 155,481,107.90/11,665.56
  6. Step 6: Final answer
    x = 13,328.22

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1.5x scale

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.