Home / 13,388.49-18,476.10-8,082.27

Finding the Fourth Proportional to 13,388.49, 18,476.10 and 8,082.27

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Solution

The fourth proportional to 13,388.49, 18,476.10 and 8,082.27 is: 11,153.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.49 : 18,476.10 = 8,082.27 : x
  2. Step 2: Convert to fraction form
    13,388.49/18,476.10 = 8,082.27/x
  3. Step 3: Cross multiply
    13,388.49x = 18,476.10 × 8,082.27
  4. Step 4: Simplify right side
    13,388.49x = 149,328,828.75
  5. Step 5: Solve for x
    x = 149,328,828.75/13,388.49
  6. Step 6: Final answer
    x = 11,153.52

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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.