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Finding the Fourth Proportional to 15,496.53, 21,383.52 and 8,782.04

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Solution

The fourth proportional to 15,496.53, 21,383.52 and 8,782.04 is: 12,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,496.53 : 21,383.52 = 8,782.04 : x
  2. Step 2: Convert to fraction form
    15,496.53/21,383.52 = 8,782.04/x
  3. Step 3: Cross multiply
    15,496.53x = 21,383.52 × 8,782.04
  4. Step 4: Simplify right side
    15,496.53x = 187,790,821.06
  5. Step 5: Solve for x
    x = 187,790,821.06/15,496.53
  6. Step 6: Final answer
    x = 12,118.25

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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.